Ubuntu – No pre-installed ubuntu one application or software

I removed it through the Software Center and haven't had any problems since. I'm not sure if its completely removed, but it doesn't show up anywhere I see on my computer (not even the messaging menu). The Ubuntu One folder in my Documents was still there though so I had to remove that.

1. USC doesn't require any extra login to function properly. You will need to authorize any changes to the system with your normal password
2. If you want to receive recommendations, you can connect USC to your Launchpad account, which is the same as your Ubuntu One account. This is purely optional. It is required because your local login information isn't shared with the Ubuntu servers at all. The only thing they know about you is your IP and optionally your Launchpad login. This is a little similar to how using Android doesn't require a Google account, but the Play Store does.
3. Connecting USC to Launchpad means that you can sync the installed software on different computers. That's quite useful in some situations.