It's one thing to expect in-flight WiFi on a commercial flight serving two or three hundred addicted peons, but how on Earth has it taken until now for NetJets to hop onboard this bandwagon? For those unaware, NetJets hosts the world's largest fractional fleet of business-oriented aircraft, and those that lay claim to portions of its herd are amongst the most wealthy this world has to offer. Currently, the outfit has just over 800 planes, and starting next month over 250 of them (in the midsize and large-cabin categories) will be equipped with Aircell's high speed internet service. In time, NetJets is planning to have "all future fleet aircraft, includi