Spotted at the recent Wireless LAN Event at Olympia - Telabria have packaged a WLAN hotspot (802.11a/b/g), and 3G modem in a small ruggedised case, suitable for rapid deployment anywhere. It will also connect into a WiFi mesh network for backhaul if that is available. Neat idea.
I also had a brief chat with the company. Previously I'd thought that they were just a service provider, rolling out the first WiMax network in Kent, but it turns out that there are 3 threads to the company. They are a full service provider (Kent), run hotspots for other operators, and manufacture their own hardware.