I think $30 is pretty reasonable compared to how much they used to charge (same price as the iPhone 3G at least). Also, pretty much everyone AFAIK "caps" their "unlimited" data at 5GB. Whether or not they care if you go over is another story.
Anyhow, just ordered a HTC Touch Pro2 for about $150 (as low as $100 with NE2). Not sure how it'll perform with geocaching, but it does have its own GPS chip and can get a fix in 5-30 seconds with QuickGPS (downloads the ephemeris and finds the satellites). 800x480 WVGA is nice too, if anything supports it.
I just upgraded from the Touch Pro to the Touch Pro II and have found the GPS much more reliable for Geocaching. I'm using a great freeware program called GCZ from nicque. I've used this program on other windows mobile phones too. FYI - Verizon has NOT locked the GPS on their most recent WM phones. this program allows you to download all the nearby caches once you have a fix on your GPS; it will then plot them on the google map program, allows you to log your caches, as well as work with travel bugs etc. It is GREAT!
