Anyone else think it's goofy that tablet and phones are merged into a category called mobile?  

They're very different devices with different usage patterns and different potential for advertising, so it's confusing to merge them into one category.

In particular, I'm reading Facebook's results and trying to figure out what they mean when mobile is defined as "a user who accessed Facebook via a mobile app or via mobile-optimized versions of our website such as m.facebook.com, whether on a mobile phone or tablet such as the iPad."  When mobile advertising increases to 23% -- which is impressive no matter how we slice it -- what does it mean?  Does it mean people are using tablets more (which we already know)?  Or that Facebook is getting a lot more successful with their ads on the tiny screens of smartphones?  Or something else?
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