Thanks to @cvpcs (developer of the ultra-minimalistic Ruby and Sapphire ROMs), and his 2nd-init hack, the DROID X and DROID 2 can finally experience some truly custom ROMs, not just some stripped down versions of the stock build. The MIUI ROM is a mashup of sorts – taking the best of various ROMs and putting them together into one awesome package. Reminiscent of iOS on the outside, that similarity stops here. Quick and stable, MIUI makes for a excellent ROM if you’re looking to better the performance of your phone.
With no viable way yet to modify the kernel on Motorola devices (because of the bootloader policy), this particular port is built from CyanogenMOD nightlies that can utilize the stock kernel. The original ROM was a complete AOSP rebuild, and this is a far-cry from that. However MIUI, by its very nature, is many things on many different devices. The performance gain we all know and love is not lost on these phones.
[via Droid-Life]