Both AT&T and Verizon have started offering netbooks for $50 to $100 if users sign up for long-term 3G data contracts. It's a nice deal for carriers, as the money they spend up front is recouped over two years at $60 per month plus fees. Or more, if the user doesn't understand there's a 5GB cap and winds up with a huge bandwidth bill from overage charges. But what if the user takes the netbook deal and then stops paying their bills, sticking the carrier at a loss? Enter Ericsson's new netbook kill switch:Granted, the damage they'd take on their credit is all the incentive most users need to keep paying the bills, but carriers now have a new option. Still, it's hard to think most operators would actually use it. Ericsson's kill pill is more useful as a security resource for corporate laptops/netbooks that wander off the reservation. Assuming it can't be easily disabled by a five-year-old.