Now I am on Market 3.0.27. Sometimes, it seems to get flubbed up on automatic app updates. They will show up and not go away even after replacing the old app. They will show up at the top of the My Apps List with a status of Update, when they have already updated. Then if I select it, it only gives me the option to open or uninstall.
This may be related to me using Titanium Backup to move users apps to the system area and also incorporate updates into the system area.
I tried moving the app back to user before running the update and then moving it back to system and stuff like that but it still shows up on the update list.
No big deal, but a little annoying.