Thanks to this update, Mac users (who use the latest beta version) can now also finally share their screens with PC users, which wasn't possible until now.

Overall, while it works perfectly well, Skype's screen sharing features are pretty basic and allow users to either share the full screen or select a part of the screen they want to share. A number of third-party developers already offered Skype plugins that allow users to share their screens with their contacts. And quite a few of these offer a wider range of features than Skype's own solution, including white-board functionality.

The image of the screen is great, as one would expect. But in order to share a screen, a voice call has to be initiated, which might not always be what you really want to do, especially if you are like a lot of us here at RWW who often use Skype for text-only chats as well. Sadly, it also doesn't look like it is possible to share a screen with a group of contacts or a Skype room. For now, you will still need dedicated screen sharing programs like Yuuguu for this kind of functionality.

More New Features

Skype also added additional support for visually impaired users who use screen reading software, as well as birthday reminders that will alert you when it's one of your contacts' birthdays.

As always, we need to point out that this is beta software and you might still find some bugs in it. Overall, though, Skype's beta releases have generally been very stable. A full set of release notes is available here (PDF).

We spoke to the Ribbit team yesterday, and while Ribbit is currently focused on providing SDK's and toolkits for Adobe's Flex and Flash platforms, it is also currently testing a RESTful API in private beta, which will soon allow developers to integrate Ribbit's platform into numerous other programming languages as well.

Winners

Here are the winners of the five categories in Ribbit's KillerApps challenge:

Media, Advertising, Entertainment: Lucid Viewer

Lucitd Viewer is an authoring tool that allows developers to create interesting, immersive experiences. This demo here, for example, shows a 3D, Google StreetView-like view of a street in Rome, with the ability to call up stores directly from the Flash interface through Ribbit's service. Lucid Viewer also won the Grand Price in Ribbit's KillerApps contest.

Business: Sugared Frog

Similar to Ribbit's own integration with Salesforce, Sugared Frog integrates Ribbit with SugarCRM. With the help of Sugared Frog, users of SugarCRM's open source solution can use Sugared Frog to organize their voicemail, and dictate notes and memos right from their mobile phones.

Social Networking and Communication: Save A Life

Save a Life is an interesting Adobe AIR application that allows you to quickly reach a group of friends or community members by phone. Currently, the application focuses on blood donations (you can download the application here), though the program could be used for other donation campaigns or emergency services as well.

Breakthrough: CYHAA

CYHAA won Ribbit's free-form 'breakthrough' category. CYHAA, which stands for Control Your Home, Anytime, Anywhere allows users to control their smart home devices with their voice right from their phones.

In ten years time we may look at Skype in the same way we look at Amazon and Google, as a huge built-to-last company, for these ten reasons:

1. It has revenue, about $500 million in 2008. Ahem, only in the strange world of Web 2.0 is that considered remarkable. I love using Twitter, but without sustainable revenue their future has to be in question.
2. It is profitable. We're talking "high-teen margins," according to eBay's CEO at the Accel Symposium. That does put it in a different league. It means they can survive the harshest of economic climates. If Facebook is having to raise money in these markets their model must be fundamentally flawed, which means their time as an independent company may be limited. To control your own destiny, you need to be profitable.
3. Skype's growth is accelerating in a tough market. Skype is publicly talking about growth rates of 30% to 40%. That's not bad in an economy where flat is the new 30%. Skype has the perfect recession pitch: cut costs now! This shows in its most recent numbers. In the last quarter, Donahoe told us that Skype-to-Skype grew 73% and Skype Out grew 63%.
4. Disruptive technology. Disruptive technology is an over-hyped term, but in this case it really fits. Skype's peer to peer technology enables them to dramatically under-price the competition and still make money. New users don't cost much money - compare that with Facebook and YouTube. Even better, each new user that comes on improves the service for others - the core P2P proposition.
5. Viral marketing. Skype is the perfect viral business. I have lost count of the number of people I have told about Skype, for the simple reason that I want to communicate better/cheaper with them. Many of them are doing the same.
6. Massive market with vulnerable incumbents. $2 trillion is a lot of money. That is the size of the global telecom market. As to vulnerable, how many people feel so loyal to their telephone company that they won't switch to get lower prices? Yes, when Skype dominates the market it won't be worth $2 trillion any more. Even if it is worth 25% of that, say $500 billion, that is OK for the dominant player. Faced with the Skype threat, incumbents have a horrible innovator's dilemma. To really match Skype will destroy their current business even faster.
7. Just wait until it bites into those cell phone bills. Skype on mobile phones - really native Skype you can use for free wherever there is WiFi - has been possible technically for some time. This has been held back by the mobile operator's head lock on the device manufacturers. At some point the dam will break. Consumers pent up anger over nickle and diming cell phone bills will ensure that a real alternative will be welcomed.
8. Skype is totally mainstream. This is not about being hip or early adopter. Just show the video conversation to anybody with loved ones in distant places. You will see the surprise and amazement that makes it seem like magic.
9. It is a sticky service. Google still gets my business because they are better than the alternatives. But switching to an alternative will be totally simple. When somebody suggests using something other than Skype, I resist. I have my contacts in there, know exactly how it works and have integrated some external tools. Skype can continually add new features to make the experience better as our hunger for communication is pretty well limitless.
10. Skype can do an IPO. For anyone younger than 30, we should probably spell that out: Initial Public Offering. We keep being told that the IPO market is moribund because of Sarbanes-Oxley. Baloney! The IPO market is moribund because we have lacked profitable high-growth companies that move into huge markets.

My prediction is that as soon as market conditions improve, eBay will sell Skype through an IPO. Their shareholders will pressure them to do so. There is no synergy logic in being part of eBay. The value of Skype is obscured by the problems in eBay's core business. The Skype IPO can be early in the market recovery, as their story resonates so well in a recession (markets usually recover well before the economy recovers).

Who Else?

Who else can take the title "biggest winner from the Web 2.0 era"?

• Google: not really Web 2.0, though; born in 1999.
• YouTube: still losing money, no clear monetization model, and video-serving costs are substantial. It is hard to imagine YouTube as an independent company
• Facebook: how long can the great hope remain the great hope? At some point, it has to demonstrate a sustainable revenue model and some profit. It still doesn't have a native revenue model that makes sense to both users and advertisers.
• Twitter: see above.
• Salesforce.com: not really Web 2.0 either; born in 1999. More revenue than Skype today, but smaller addressable market.