Sprint has officially taken the wraps off the ZTE Optik and, as expected, the 7-inch tablet will be landing for a measely $100 on contract. Of course, to hit that price point you'll have to make some sacrifices, like signing up for a two-year agreement and an appropriate data plan. Not to mention you'll have to settle for a 3G connection -- there's no WiMAX or LTE in sight. Underneath the hood is a respectabl