Just curious, but is it possible to access the data from the temperature sensor in an iDevice? Clearly the OS itself can as it gives you an overheating warning, but I couldn't find any info on here or Google about whether or not it could actually be accessed from a user standpoint. I'm assuming that this isn't something Apple has released to the development community at large, but I just thought I'd ask. It'd be nice to develop an app that could actually detect the ambient temperature without relying on Internet data, which does nothing for you if you're indoors or out of service.