The mSecure password manager that has Sync with a Mac and Windows Desktop App (wireless of course) is coming to Android. Long available on iPhones, this is one best, because it can handle a lot of different types of passwords, credit cards, bank accounts, etc.
There is a free backup program for mac and windows.
There is also a paid Sync program, which lets you edit your stuff on the computer and sync between the phone. This is sweet when you have a couple different devices to keep in sync, like that old iphone you just use as an iPod Touch since you got your Android.
Its in private beta now and (Sync is not there yet), but I've been testing for them and its pretty sweet.
msecure No mention there of the Android version just yet. Still in private beta. You could maybe beg them. (I did).