wrong apple id iPhone 3G

If you sync with your wife's computer that could be why

Did you sync your wife apps on your phone?   did you purchase those apps with her apple id?

All apps are tied to the apple id that you used to purchased or download it with.

Well for some reason not all my apps were listed in itunes, yet I still see some of hers in my list.  We both have Pandora, so I removed it and then it reverted back to my login.  Now I have to re-download that app and a few others if I can remember.  How can you tell who's apps are who's, and why would it show hers when I am logged in to th store?

I have similar problem.  Using my iPad with MY apps purchased under MY apple ID, when I go to update them and it asks me for my password, my husbands user name comes up, no way to change users just a password or cancel option.  When I go to iTunes it shows MY info, it's just the update that's messed up and I hav no way to change it!