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Social media-fueled personalized magazine app Flipboard announced today that they've seen 1 million new users as a result of launching their iPhone app last week.

The app has long been beloved by owners of the iPad, the only device on which it was available until recently. By bringing the app to the iPhone, the Palo Alto-based startup made good on a promise they had been making for several months.

Ending months of rumors, Google today launched its own personalized news-reading app for tablets and smartphones. Google Currents, as it's called, is an app for iOS and Android that presents content from magazines, news sites and blogs in a format that's far more digestible on mobile devices.

It lands in a somewhat crowded space occupied by offerings from Yahoo and AOL as well as from startups like Flipboard, Flud, Pulse and Zite, which was acquired by CNN earlier this year. Even before today's launch Google Currents was billed as a potential "Flipboard killer." After taking Google's new app for a spin, we're not convinced it poses a credible threat.

If you're having trouble loading content on Flipboard this morning, you are not alone. The service has been struggling due to high demand for its new iPhone app, the startup confirmed via Twitter.

Flipboard for iPhone went live in the App Store last night, more than 16 months after the socially-curated digital magazine launched on the iPad. The iPhone version takes the same functionality it had on the tablet and elegantly packs it into a much smaller sized device.

For iPad owners, the personalized, socially-curated digital magazine Flipboard is one of the absolute must-install apps for the device. For many, social news-reading apps like this have begun to replace printed magazines and newspapers all together. Pretty much since it first debuted on Apple's tablet in July 2010, users have been clamoring for an iPhone version of Flipboard. Today, that wait ends.

Flipboard's latest update, available now in the App Store, brings the same social media-fueled reading experience to the smaller screen of the iPhone and iPod Touch.

Flipboard launches a new update today that introduces Flipboard Accounts, giving users the ability to sign in and personalize their favorite sections and social networks in the iPad feed reader. This feature heralds the imminent arrival of Flipboard for iPhone, which today's announcement acknowledges is "forthcoming."

Personalization allows people who share an iPad to keep separate Flipboard arrangements, but it will also sync the iPad version with the upcoming iPhone release. Today's update also adds integration with Tumblr and photography site 500px alongside Facebook, Twitter, LinkedIn, Flickr, Google Reader and Instagram as built-in options for browsing those networks in Flipboard's clean, magazine-style layout.

Back when the iPad was nothing more than an Apple gadget rumor, publishers began imagining the possibilities the device would bring. Only 22 months into the so-called tablet revolution, the iPad hasn't "saved" struggling print publishers, but early indicators look positive for publishers old and new. Last month, Apple went live with Newsstand, a new feature in iOS 5 geared toward bringing publications front and center.

Like it or not, the iPad is changing the way we read and Pew says that tablet owners are more engaged than PC users are. Naturally, publishers are looking to Amazon's Kindle Fire next.

Yahoo is getting super-serious about the role tablets will play in its future content strategy. On Tuesday, they launched IntoNow, an impressive social TV app for the iPad that marries the check-in functionality of GetGlue with the real-time content identification of Shazam. The next day, the company pushed out LiveStand, another iPad app, this one in the tradition of personalized news reading apps like Flipboard, Zite and AOL's Editions.

The app, which comes in advance of Google's own rumored offering, is pretty well-designed. It has less content sources than many existing players, but what it does have is formatted very nicely.

Social data discovery API service Qwerly has been acquired by social marketing data provider Fliptop, the companies announced late last night. Qwerly was a European startup that allowed developers to provide information like a person's Twitter profile or email address and would then return links to their corresponding profiles on Facebook, LinkedIn and other social networks. In other words, it is a tool that helps you better understand the people you know, it points you to where they share their thoughts and experiences online, programmatically. (See: Qwerly Hopes to Power Rebel Alliance Against Facebook)

Fliptop, which acquired Qwerly, is a little written-about social media marketing platform that does similar things, just better, faster and with an explicit aim at marketers. Ultimately all beautiful things must bow down before the god of marketing; human communication has no meaning beyond the opportunity it provides for one person to sell something to another.

If Flipboard thought it had enough competition in the social news-reading tablet app space, it's got a thing or two coming. Well, one from Google and one from Yahoo, reportedly. The two Web giants are working on their own such applications, the first of which may drop next week.

Livestand is Yahoo's take on the personalized reading app for tablets, which ousted CEO Carol Bartz announced earlier this year. Sources tell AllThingsD that the app is expected to be released next week. It was originally slated to be launched on iOS and Android during the first half of 2011.

Personalized iPad magazine discovery app Zite introduced a new update, humorously named Sybil, which allows users to switch between multiple profiles (or personalities, if you'd prefer). Aside from satisfying your alter-ego, it's now easier to share an iPad with other people, since they'll be able to create their very own profiles. This update arrived after Zite surveyed 335 iPad users, discovering that 30% shared their device with one or more people.