My two cents would be something like this:
First things first: Don't change things that work. If it's not broken, don't "do a Microsoft" and add stuff that eventually makes something that "just works" fancy, more complicated, and eventually ... broken.
If it's not broken now, then it works. Don't fix it.
Keep the simplicity in navigation, look, and lightweight design.
Don't add lots of bells and whistles. We've done extremely fine without that sofar, so please don't introduce anything "nice to".
For any new thing suggested, be very critical - is this *really* a need to, or is it just nice. Nice is wrong. Don't do it.
[edited by: claus at 10:57 pm (utc) on May 25, 2010]