Sure, popular belief equates Columbian exports with guns and cocaine, but two Bogota-based companies presently have 10-inch tablet computers on the brain. Compumax has got an Android-powered Tegra 2 device on tap with a dual-core 1GHz Cortex A9, 512MB of RAM and a 32GB hard drive, and Smart PC's looking at a netbook-specced Windows 7 slate with an Atom N450 processor, a DVD burner, up to 2GB of RAM and a 320GB hard drive, a folding stand and a pair of peripheral-friendly USB p