Due to licensing issues, HTC stripped most parts of Windows Mobile from their HTC Shift which was announced to have both Vista and Windows Mobile together. The device is not yet widely available in the market but the hackers have already found out a way to unlock the full potential of the device through e-mail attachments and now you can enjoy full Windows Mobile functions on a Shift whenever you get bored of Vista performing slow or due to gruesomely sucking batter life. If you would like to know how, read it here (includes a video explaining how to do it)