Uploadit now require sign-up.(Still free)
You can manage your files!
You can view Member Galleries (If they make the picture public)
You can upload up to 20 files!
Max filesize 200,000 bytes instead of 600,000 bytes
JPEG type only(Used to be all )

So there is some very good and some stuff that doesnt really matter but sux.

Like 200,000 bytes instead of 600,000 bytes per file is kinda bad.
While JPEG only might be annoying a little i hardly ever used anything else. Only 3 time i uploaded gif.

http://www.uploadit.org