Just a note, I have tried to use it. I have failed, keep getting the insufficient space error. I even factory reset and still get it. Motorola Backflip 2.1
ok the problem is not the just the phone or the wonder machine its a combination of things. It usually starts with a bad apk and goes down hill from there. So try this, find a couple different apk's.
clean out the payload folder(by deleteing contents) then put the new apk into payload folder , then try to load the apk
if it fails clean out the payload folder, close out the wonder machine, reopen and try the above process again.
try
THIS apk,,,, DO NOT USE IT , ITS JUST FOR TESTING PURPOSES
let us know if you can get it to work, if not ill work with you if you are willing to get it to work