iTunes App Updates

I was wondering what would happen if new versions of the iTunes Apps were available. And I found out my answer today. I was checking my iPod Touch and above the App Store icon, there was a number in red. I clicked on it and it showed me all the updated Apps for today. So I went ahead and logged into iTunes and re-downloaded the apps. Since I bought it previously (for free), I was able to download another version of it. I imagine this would be the same for paid apps too. Here are the screenshots.

Today I updated and synced new versions of PhoneSaber, Pandora Radio, and Facebook. If you installed these apps previously, you may want to update them as well.