More Joule: UI changes

Briefly, since I'm busy:

Since it was a fairly trivial fix, I implemented a two-stage system in Joule last night, as suggested here: there's just a username box on the front page, and it takes you to an intermediate page where you pick the service.  Most people bookmark their chart page and don't use the controls, and I was aiming to make the controls simpler even at the possible cost of a few extra seconds for a first-time user.  I'm asking for feedback for or against this idea.  I've only heard one reply so far and they didn't like it.  What do you think?