Junxion Box 3G to 802.11 bridge

If you want a bridge between your 2.5/3G data connection WAN and your 802.11b LAN then you want the Junxion Box:

http://www.junxion.com/

Using this device you can create an 802.11b LAN with wireless uplink connectivity to the internet anywhere where your 2.5/3G cellular telephone has connectivity. Of particular interest would be as a means to integrate 802.11b internet connectivity into your car.

Note that the StompBox is a cheaper DIY alternative, more information available from here:

http://moro.fbrtech.com/~tora/EVDO/