While potential customers and the technology press await T-Mobile’s G2 smartphone later this year, the wireless carrier is reportedly already knee-deep into the development of the next level of devices powered by the open source Android operating system. The company will roll out a home phone and a tablet/netbook computer sometime in 2010, according to the report, which cites confidential documents generated by a T-Mobile partner. The home phone is expected to include docking stations and the ability to send and receive data while recharging its battery.