i think it might be rev a, the upload speeds (>300kb/s) are greater than my rev 0 apache (~150kb/s) i hear that the only diff between rev a/0 is the upload and burst.
i upgrade the radio using the sdcard + boot loader method.. no improved reception or signal, nor does it improve my bandwidth speed.. but we shall try it in more metropolitan areas and see. and this should be a rev a area .. it's so cal