Anyone know of an iPhone app that allows you to print an e-mail, phot, etc that's on the iPhone directly to a WiFi printer without use of a PC or Mac? I'm thinking that as teh iPhone and WiFi printer are on the wireless network in my home there might be an app to send the print job from the phone to the printer. I don't really want to leave my Mac booted up all the time. I've found a couple of apps that do this as long as the Mac (or PC) is running with some middleware. Any app that does this without another computer involved?