Back from work.
I can say that 4G works like a charm.
My biggest gripe is all of the streaming radio apps. I know it is not just OMJ's ROM as I also tried Fresh's beta. I've tried Yahoo Music Radio, RadioTime and Wunderadio. As someone posted previously you can't shut off Wunderadio or RadioTime. I've read where you have to go to Manage Applications and Force close it there. Yahoo, on the other hand, runs but seems to almost continually buffer...just a split second every minute or so...then just shuts off. No force close message or anything.
I had good 4G signal (3 bars)...so it's not loss of signal.
I have no idea if this thread at XDA
(Fix poor AAC streaming performance) has anything to do with the apps not working right...but supposedly makes the sound for Pandora/Slacker, etc. much better. I haven't tried it but thought I would share. (Read the thread for your answers as I have none...lol)