On flight LH 418 from Frankfurt to Washington, Lufthansa AG today began a three-month trial of a new onboard wireless broadband service that allows travelers to connect to the Internet some 30,000 feet in the sky... Users will be able to download from the Internet at speeds up to 3M bit/sec. and upload, initially, at speeds up to 128K bit/sec., according to Lufthansa. The upload speeds will later increase to 750K bit/sec.... Cisco Systems Inc. is providing technology for the onboard 802.11b-based network, which offers wireless connectivity throughout all cabins, in addition to wireline connectivity via an Ethernet connector in the passenger seats.