So far this is what I have experienced... consider me a tester for ya MotaBoy.
I've installed this on three phones. Every experience was different.
One lost the ability to do Facebook via Motoblur. A factory reset seemed to fix that. Also, seems like the factory reset fixed the C3PO pic issue too. My plan moving forward is to do the install, as you say, step by step but do a factory reset (and phone reactivation) right after a confirmed successful install. Seems to work wonders. Just an FYI. If my theory is correct I think it also fixed the battery issue. I have yet to see that come back. Just my experience so far. Where are my black bar installs Mister!
Thanks for all this. This phone runs squeaky clean. If anyone is having weird issues just post and I'll let you know what I know. You da man MotaBoy!