A few months ago I posted an iOS Support Matrix put together by the folks at Empirical Magic. Now they’ve released version 2.0 of the matrix which includes the 5th gen iPod touch, iPhone 5, iPad mini and iPad 4. In addition to the new devices, they’ve also added some additional useful info to the matrix. The matrix is available in a number of resolutions as well as a PDF here.
While this matrix is great to track which devices you support and high level specs like iOS version and whether a device is retina or not, sometimes you need more info. If you’re looking for a little more technical info, you should check out this Google Doc spreadsheet maintained by Jonathan Wight and this iOS Device Specification Grid by Blake Patterson (h/t http://iosdevweekly.com). Both provide nice compilations of various technical information about iOS devices, though each has some data that the other does not. I’m sure there are some other great references like this out there that I’m not aware of. If you know of one that wasn’t mentioned here, please share it in the comments below.