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It's none-too-shocking news, but well worth noting: a new study of over 10,000 smartphone users has indicated that mobile Web and mobile application usage increases during the evening and nighttime hours. Meanwhile, more traditional types of communications attract increased attention during the day.

The data comes from mobile analytics firm Zokem, which found that voice and messaging dominate in the day time, but apps, and to a lesser extent, mobile Web browsing really take off after the workday is over.

Adult cell phone users who use apps are younger, more educated and more affluent than other adults. Over the last few weeks, the Pew Internet & American Life Project has  been looking at how adults use technology, and a new report released today focuses on app usage among this age group. According to this report, apps are not indispensable for most adults. While about 35% of U.S. adults now have apps on their cell phones, only 24% of adults actually use them. About a tenth of all U.S. adults doesn't even know if their phones can run apps.

Generation Y, aka the "Net Generation," does not dominate every aspect of online life. That revealing statistic and many others like it come from Pew Internet and American Life's recent "Generations Online" report which takes a look at how the different generations of users - from Millennials to the G.I. Generation - use the internet.