KeePassDroid is a port of the KeePass Password safe for the Android platform. It's like TrueCrypt, but for passwords.
Originally this software was created for Windows (Computers), since 2011-04-26 package for Ubuntu is available (noticed just now, lol. Didn't check that website for some time) but this port allows you to manage the encrypted database on android. Best thing with it is that you can write everything on your computer, then transfer that database to your phone and use it there - it's what I did when I was migrating from other phone that had a built-in password manager. Best app of it's kind, no doubt, it's also free - no ads.
Official website:
http://www.keepassdroid.com/For Computers:
http://keepass.info/on the market:
https://market.android.com/details?id=com.android.keepass
