Develop for wp is so complicated that even to test a app you need to hunt people because normal people can't do it. : )
@Ron, What is your app, if it is useful to me I can test, but I dont have time to test a app if is just test( games, web content, social, etc) because a deep test is possible only with continuous usage, except if it is just to let it open on the background : ). my Lumia is 620.