What usually happens to me when submitting new stuff to extras:
I hit the promote -button in the package testing page, but I can't add the goddamn screenshot before the autobuilder / whatsoever decides to push / move the package to extras. And that thing won't happen rightaway, it can take from 10-60 minutes and I usually don't have time to wait and refresh the downloads -page just to see when I will be able to attach the screenshot. I leave the computer or browse to another website and... well.. I forget the whole screenshot thing.

So my propose would be: please maemo.org admins; make it possible to uplaod screenshots to packages that are in extras-testing. That way they will be added to those packages more likely and those screenies would ofcourse move automaticly to the extras / downloads -page among the package itself. It would also help out testers; they could see what the app / theme looks like without instlaling it when it's in testing repository.