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OI Update is an update notification app for the Android platform. This app makes it easier for you to find out when the apps you've downloaded actually have an update available. Considering this functionality is something that has been lacking up until now, it is definitely a great start.
When launching this app it automatically scans all of your installed applications and lists them out. Unfortunately most of the apps seem to have a question mark next to them, but you'll probably find at least one with a download symbol next to it. All of the apps do have the information as to what version they currently are, which can be pretty handy on it's own.
The download symbol means that you've got a new update to grab. Unfortunately, as of yet nothing can integrate with the Android Market so you'll be brought to the developers website to get more info on the app update. OI Update is alerted by the developers update as to when there is a new version, but it's up to the developer as to how a user can download the app directly. Some developers link to other sites where you have to search for the right file to download.
The concept for this app is amazing. Unfortunately being so do it yourself is going to turn a ton of people off. For that reason alone, this app is definitely not a must have but it's something that could become the most important app on the Android platform if they can figure out a way to go about it better.