Wife has an incredible which is stock.... is there a ics rom ? And then free tether?
Yes look into AOKP. Stands for Android Open Kang Project. Just flashed this rom yesterday, works great on the dinc. I had a CM7 on before hand and AOKP runs faster by a good bit.
Yes there are some bugs... most notably, about every other time I take the phone off the charger, it locks and I have to do a battery pull and reboot. Google maps also seems to have some random issues from time to time.
I can't recommend AOKP as a daily driver for everyone, but I've been using it for a while now and none of the problems are too bad for me to want to downgrade.