Another hiptop3.com exclusive coming at you. A little birdy showed us some stuff that shows that T-Mobile is working on a site (probably http://www.sidekick.com/shells)where you can create your own shells for your Sidekick. It looks like it’s going to be going to have a fancy flash interface where you can upload your own images to help customize your device. Links at this time indicate that the actual shells are going to be made by skinit.com. (It looks like this means the “shells” might be more like the “skins” we know and love already) In addition, reminiscent of some theme sites out there, you’ll be able to browse around and see what other people have created, and you can even vote on them. I can’t wait to see what sort of theme/shell combinations people come up with. Some screenshots of the site still in development below: