I don't get it what's the big deal here. An Atom-Based MID is a PC, which can run Linux, which can run XBMC. Just install Ubuntu Intrepid, add a couple of lines to /etc/apt/sources.list and a dozen pressed keys later you have XBMC installed. Yay.

Remember one, and use some version of Password Safe. Sure, your desktop might provide similar functionality (at least Mac OS X and GNOME does), but they are not cross platform. When using Password Safe, you can just copy around the encrypted data file or have it with you in your physical keyring (hah!) stored on a USB drive and access the passwords on any Unix or Windows machine or platform that can run Java and SWT. Actually, it was originally designed by that Chuck Norris guy, so it must be good!