FWIW, I don't have a case on my iPhone 4 since I can't stand the extra bulk, but I am definitely considering the Audman.
I left my iPod out in the sun awhile ago and it overheated... since then I've found my iPhone to be a lousy replacement for listening to music. The lack of a tactile UI means that I'm constantly fishing it out of my coat to do something as simple as skip a song. Even worse in the car (I have a 1/8" connection, but don't use it because trying to manage the iPod app while driving is really no better than texting while driving).Seems like this product may be a good solution.
Pheter|14 years ago