Ready for some serious Sidekick 4G news? We thought so. First up, we've finally got the official pricing details from T-Mobile. That's right, come this spring the revived Sidekick will be hitting the likely-to-be-acquired carrier for $99.99 after a $50 mail-in-rebate and two-year contract with unlimited data -- those that opt for the two-year contract but go with a lower-end data plan will have to pay $149.99 for the Android 2.2 handset. Sure, the pricing doesn't sou