American Airlines will soon be joining Delta as a US passenger airline service offering wireless service. The service for laptops will cost $9.95 on flights 3 hours or less, and $12.95 on longer flights. There is also a service for PDA's and smartphones that will cost $7.95 for any flight length. American is reluctant to add service for cellphones due to technical and bandwidth reasons, but also to balance out the noise level on planes between passengers that want to sleep, and those that want to talk above the jet engine (CAN YOU HEAR ME NOW?). So far, the wireless, in-flight service is only in the US, as it relies on signals from cell towers, although Southwest is currently testing the service using satellites. Virgin America Plans to have the service by June, and both Southwest and JetBlue are experimenting with it on planes flying inside the USA.