Ability to make your files "Private" or "Public" (If it's public, it will be listed under the new section called "Public collections" and every user will be able to see/ post them). If they are set to private, only you can see/post them.
Added an "Email this picture" page, you can now easily email your favourite picture to your friends. Inline, Thumbnail or as a text link.
("As attachment" doesn't work yet)
Storage capacity now depends of user Level. Starts at 3Mb for "users" up to 10Mb for Moderators.
Added for Admin / Moderators
Picture filtering/ User listing / User deletion.