The three or so main roms available on the All Things Root sub-forum are boost-compatible. It's the Sprint Ultra that's a little trickier to find things for.

There's $hevrom, starscROM, Prime ROM (boost only, according to the thread), and Ultra ROM. I've only tried the first two, myself. If it weren't for the removal of the stock Email app, I'd be using $hevrom right now (need it for work). Also, the upcoming update for $hevrom looks pretty sweet.

 

When shevron AKA Megatron 6.0 is released there will be a sprint version available for sprint users. The Email app has been fixed in 6.0 so i guess i will be expecting you in the 6.0 release?? lol and thanks

 

Uh....sign me up for the sprint image lol

 

I don't, but if you do a forum-specific search (see pic below) for whichever you're interested in, it should usually be the first one that comes up. Just click the button pictured below, and a text box will come up, then type what you're looking for.

 

Here ya go!

MegaTron ($hevRom)
http://androidforums.com/transform-...vron-rom-version-5-3-2-updated-6-20-12-a.html

Ultra Rom
http://androidforums.com/transform-...5579-ultra-rom-version-4-0-0-coming-soon.html

Prime Rom
http://androidforums.com/transform-...overy-download-options-power-button-menu.html

Star-ScRom
http://androidforums.com/transform-ultra-all-things-root/454412-acs-star-scrom-transform-ultra.html