Thanks, Ed. That's great!
The slideshow is actually something we're working on. (Naturally, we're doing it in a complicated way so it's been taking longer than expected.)
One of the most complex aspects of profiles is navigation. The navigation on a profile -- the tabs -- aren't as simple on the back-end as they look. This is especially true since every profile has so many viewing and privacy conditionals.
FWIW, as you may know, you can do backgrounds. But it has to be uploaded as an image for the profile, and they almost never look good.