Same issue here
Hey all - I have an EVO 4G LTE as well, trying to install CM10 (using TWRP 2.3.1)
All appears to go well (loaded ROM, Gapps, boot.img), but when I boot, I get stuck on the CyanogenMod animation screen.
I was able to load MeanROM earlier, but kept running into Google Play and Gmail issues.
Anyone figure out the problem yet?