I understand to play my local files on my iphone 4 (latest software update) , they have to sync via wifi with my pc (windows 7). Even though they are both connected to the same wifi, spotify on my pc won't recognize my iphone and it doesn't appear under 'devices' like it should. Why won't it appear and what can i possibly do to fix it? I've looked all over for a solution and none seem to work. This is very frustrating because I would like to be able to listen to my local files and songs on spotify in one playlist. Please respond asap, I am a paying customer who would like this problem resolved. Thank you.