[adyus]

That's good enough for me, since it makes more sense.

A followup question: It is indeed best when the button gets out of the way. What assumptions are safe to make about the computer literacy of your visitors (i.e. they know to hit Enter to submit)?

I realize that this depends on the target demographic, but we should have a set of standards, I think. It influences everything from UI streamlining to what content goes below the fold (can we assume visitors know how or when to scroll?).