An 8GB Wi-Fi-only version of the iPad Mini (NASDAQ:AAPL) will cost just $249, according to an inventory screenshot leak - that would make the device, expected to sport a 7.85" display, $50 more expensive than the 7" 8GB Nexus 7 and 16GB Kindle Fire HD. But a 16Gb Wi-Fi version will go for $349, as will an 8GB 3G/4G version. The most costly model listed (a 64GB 3G/4G unit) will reportedly sell for $649. Apple is expected to unveil the Mini at an Oct. 23 event. (retina MacBook Pro)