I can run my apk on my dev phone 2 (os 1.6) fine. I can see it in the eclipse ddmsdevices window. If I unplug the dev phone and plug in Dave's droid phone (os 2.1), it doesnt 'detect'. I try "adb devices" in a cmd window, nothing. I made sure usb debugging was checked. There must be some step I'm leaving out?!?