As with the Black Bean ROMs, this will now have it's own thread to keep confusion down and information easier to obtain.
I present to you Paranoid Android for the Thrive!
Built from source
Includes Balthesaur 2.7x series kernel
Includes ALL fixes implemented into the Unified builds as of U5
Hardware acceleration (UI / Project Butter)
Current known issues:
Like all CM based ROMs it suffers EGL memory errors, which will result in lockscreen "blinking" and needing a hard reboot. Best way to prevent this currently is to not enable any lockscreen, it impacts a lot of devices and is still being looked into.
Headphone audio may not work, if that happens flash this in recovery courtesy of Indest