Twitter turned seven years old today. The company posted a fun video about its history, which we already know plenty about. We’ll get to that later, though. Another thing we know about Twitter i
<img src="http://www.mobilecrunch.com/wp-content/uploads/2009/11/makibishi3.jpg" />
There are more than <a href="http://www.mobilecrunch.com/2009/10/27/app-store-gets-100000-approved-apps/">100,000 a