Xbox didn't struggle for several years trying to achieve just 3% market share. I can guarantee you that if the Xbox only had 3% of the market today, Microsoft would've given up.

Clearly the mobile market is far bigger than the game console market, but fact of the matter is that the Xbox got far more traction early on than Windows Phone has ever gotten.

Though many people think it still hasn't earned back the $20-odd billion investment that's been put into it, which makes it a failure by many definitions.