The Internet is no longer confined to the office or the home PC — consumers want access to their now-familiar news, communication, and Social Computing resources on-the-go. To date, though, this has either meant lugging a laptop and searching out Wi-Fi hotspots or severely compromising on what you can do by using a phone's Web browser. Forrester believes that a new category — mobile Internet devices (MIDs) — will deliver on the promise of the mobile Internet but as an additional, rather than replacement, device. To succeed, the PC and wireless industries must blend the best of what they have. To the smart players will come billions in new revenues as consumers add a third device to their lives.