The device will cost $179, presumably with a 2-year contract. The offering is T-Mobile exclusive, and the G1 will be SIM-locked to T-Mobile's network. Plans will be add-ons for T-Mobile voice plans. For $25/month, customers will get unlimited Web and Internet access with no prepaid SMS. For $35, T-Mobile will bundle some SMS minutes along with the unlimited Web/Internet.
The US launch date will be October 22, with Europe launch in November. Existing T-Mobile customers will be able to pre-order online. Others will be able to purchase the G1 when device becomes available in retail.