While Aircell's high-speed in-flight internet service and other similar options are quickly becoming commonplace on commercial airlines, folks on private jets have so far had nothing to do but sit in their plush leather seats and drown their sorrows in a selection from the on-board wine cabinet. That dire situation now looks to be changing, however, as Cessna has just announced a partnership with Aircell that'll see the 3G-based in-flight WiFi service available as a factory option on its Citation XLS+, Citation Sovereign and Citation X business jets. As if that wasn't enough, it seems that the upgrade may even be eligible for bonus tax depreciation under