Band 25 doesn't show up, but I think it just shows up automatically as Band 26 or Band 41 if connected. I didn't see anything in the settings menu to activate it.
Become a sponsor and check out the sponsor threads and see a lot more info on our sites and great info from many other awesome people. Iowa City has had LTE for a couple weeks. Pretty cool! Hopefully more to come soon!
I have noticed the evdo more in the afternoons then switching to ehrpd in the mornings and later evenings. I am usually on the east southeast side of iowa city. I hope good stuff coming my way soon!