Username or EmailPassword
Why? XP has it, OS X has it. People moving from those OSes would be expecting it. Something as trivial as bluetooth *should* come with it.
People complain that Windows doesn't come with enough applications, yet it comes with every single example that was listed. It comes with a video editor (Windows Movie Maker), Windows Messenger, and bluetooth. How is that bloat? They're all usable features. Now, if there were 7 applications that did the same thing in a default gnome install and WEREN'T usable for a vast majority of users, THAT would be bloat. The thing is, you're not an average joe user.