T-Mobile hotspots very well work with Windows Mobile powered Pocket PC devices as example below shows:
If you use T-Mobile hotspot you must usually be prepared to use credit card. Scratch cards are usually not used in T-Mobile hotspots.
VPN works very well in T-Mobile hotspots and you speed is satisfactory. You can find T-Mobile Wi-Fi hotspots in various places like typical ones - hotels and airports but also T-Mobile has also a special deal with Starbucks - both in USA and in EU - so you can search for "Starbucks" coffee shop if you are not in vicinity of other hotspots.
