Dell Axim X51V is top of the line PDA , it has Intel PXA270 speed 624 mhz, 64 mb ram and 256 mb rom
wifi and bluetooth and 2 ext slot for storage : CF and SD. SD slot will accept new SDHC which you can
put 8 GB SD SDHC memory and Display VGA 480x640 . you can upgrade with WM6.