Evo 2.2.1 rom?

[ayryyn]

Didn't know whether to post this here or the upgrade forum topic, so please move it if necessary.

My friend has an amazing looking Rom on his Evo that shows that the Android version is 2.2.1. This Rom has some slick looking transition animations.

I have searched on several Android forums to come up with no results. Anybody have any ideas where I can get this Rom?

Edit: I actually think that it might be MikfroYo, but I cannot confirm.