On a board measuring 20 by 80 by 6.3 mm, the 200-MHz 200ax-bt and 400-MHz 400ax-bt both pack an Intel XScale PXA255 and a BlueTooth wireless transceiver. The boards also have 64 Mbytes of SDRAM plus 4 Mbytes of flash memory programmed with a 2.6 version of Linux. A software stack handles the on-board Infineon Bluetooth module. Pricing starts at $154. Development systems start at $184.