Verizon's new 4G LTE Network in the Detroit area on an HTC Thunderbolt.
VZW is promising 100+ Mbps by the end of 2011.
NOTE: the upload speeds are skewed until they update the speed test app but download speeds are spot on.
(Upload speeds are realistically about 4-6 Mbps)
Speeds range between 6-30+ Mbps down depending on how far you are from the tower.
Takes a bit of a toll on the battery life @ these speeds but nothing having a spare (or extended) battery on hand can't cure. I'm only getting about 4-6 hrs with heavy 4G use but since I'm never too far from a USB port or car charger it's not too big of a deal. (and IMO totally worth it for the speed!)

