Just when you think you've escaped the darkened woods of firmware 2.0.2 and previous ilk, along comes 2.1, wrapped in faster-loading-contacts-finery to convince you all is well in the iPhone world. That isn't entirely the case, it seems, if you're user of POP or IMAP mail accounts which are set to fetch messages. Apparently, a maddening bug exists in the new software which -- in the interest of battery power conservation, we assume -- stops the device from pulling down new emails while sleeping... unless the phone happens to be plugged in and charging. An ever-growing thread on Apple's support forums has been barraged with reports of the problem, and editors here at Engadget have certainly felt the burn. So we're putting the question to you, dear readers (and hoping the folks in Cupertino are paying attention). Are you noticing email issues with firmware 2.1?