The Android Dev Phone (and G1, by extension) does not have the cp command in the adb shell prompt. Since you can compile and run C code on the phone, you could in theory also compile the cp program but that's probably a stretch. Alternatively, you can:
cat source_file > dest_file
This works because the phone has a full-featured shell which supports stream redirection.
Display X windows on X11.app from another linux box
10 years ago