Coincidentally, I just noticed this article saying that existing windows phone users will need to buy new hardware if they want the newly announced OS:
Windows Phone 7 Users Cant Upgrade to WP8 | PCWorld
Phone devices have definitely switched to a semi-disposable model. Get a deal on a 2 year contract, then upgrade to a new phone. The hardware just advances too quickly to hang onto old phones for too long. Hard to know what Tesla might consider doing to the touch screen in 2 or 3 years.
Windows Phone 7 Users Cant Upgrade to WP8 | PCWorld
Phone devices have definitely switched to a semi-disposable model. Get a deal on a 2 year contract, then upgrade to a new phone. The hardware just advances too quickly to hang onto old phones for too long. Hard to know what Tesla might consider doing to the touch screen in 2 or 3 years.