The good news is that you don't have to use .mac to sync: it works just fine with Dropbox (and I don't see any reason why it wouldn't with other sync system).

The good news is that you don't have to use .mac to sync: it works just fine with Dropbox (and I don't see any reason why it wouldn't with other sync system). To be honest, I don't use the iPhone app so much mostly because I would still have to type my primary password there and it's not convenient on the screen keyboard. Also it uses a custom browser (or a browser element inside the app) and not the regular Safari. That can be an issue for some sites. But I still have it in case I need access to one of my randomly-generated password. Overall I highly recommend 1Password.