It almost seems like every other handset is getting the red or pink treatment in time for Valentine's Day, and the Pantech Duo smartphone is no exception. If you'll recall, this dual-slider smartphone runs Windows Mobile 6, and has features such as a 1.3-megapixel camera, quad-band support, as well as HSDPA/3G speeds. We were not terribly impressed with the Duo's slider mechanism and user interface, but it is one of the cheapest smartphones. It will set you back $99, with an AT&T contract. You can see the red Duo in shelves and online retail starting next week.