I have had several problems with various apps.
Sometimes when I try to open them, they immediately close or Force Close. Usually I uninstall the app, then immediately reinstall and it works fine.
Sometimes when I install updates, they stop working (most common with Google Maps). If I uninstall the updates, they work fine. I usually hold off on updating until they no longer work in their older version.
Other times, the little green Android man replaces the app icon and when I try to open it, it says that the app is not installed on my phone. Well, that's funny because it was installed months ago. I go to the market and reinstall and it works fine.
Majorly inconvenient and seems like an excessive amount of work to keep my phone functional.
Solved! Go to Correct Answer
If you read my original post, I said that when I install updates upon release, the apps stop working. I had these apps for months until these problems occurred so I don't think it's a question of quality.
Problem still unresolved.