Ariel points us to take a gander at the D-1100 from Indian manufacturer Spice Mobile [via]. It looks like a pretty standard Windows Mobile Pro device -- with a 320x240 touchscreen on WM 6.0, a standard 10 key keypad, a 2mp camera, and a 1340mAh battery. Looks can be deceiving.
The D-1100 may be EDGE-only, but it has two EDGE radios and SIM card slots for the both of them. One supports 850/900/1800/1900 bands and the other 900/1800. What's cool is that it's able to have both sim cards active simultaneously -- although only one of them will be able to access data and mms. Why would you want this? Travel. Hit up a foreign land, buy yourself a local SIM card and put it in the main slot for cheaper data, take your current SIM card and put it in the secondary slot so you don't have to worry about forwarding your calls and missing your texts.
Finding one will be pretty tough, but it should only put you back around 17,000 Indian Rupees, or somewhere just south of $400 US dollars.