The sly folks at Microsoft decided to snip $100 off the price of its Surface 2 tablets, bringing down the cost of entry to the Windows 8.1 RT tablet to $349 for the 32GB model. If you need more storage, the 64GB version is now priced at $449, and the 64GB with 4G LTE (on AT&T) baked in now goes for $579. What's most interesting about these...