Application Update Bug
This happened to me on my iPhone. I let it slide for a couple of weeks but then I decided to troubleshoot it. Signing out and back in to my store account, and then getting updates again fixed it. Here's how I did that:


In the App Store app on the Featured tab, scroll down to the bottom
and tap the 'Apple ID: _______' button
In the pop-up menu tap the Sign Out button
Tap the Sign In button, choose Use existing Apple ID, and sign in with your credentials
Tap the "Updates" tab to find those updates again
Update all of them again