When youve got more than a few upstarts gunning for your throne, it seems wise to keep ahead of the game. Thats why the Raspberry Pi foundation has announced an upgraded version of its Model B, the, uh, Model B+ — which is described as the final evolution of the first-generation Raspberry Pi. The tweaked hardware now offers two more USB 2.0 ports, a microSD card reader and 14 more GPIO pins, making a total of 40 on the board.