E&D, of course, has been anything but successful. It sat on Windows Mobile while Apple ran away with the consumer smart phone market and then eventually had to cancel that product, which dated back 15 years, to start again with Windows Phone. It copied the Apple playbook with its Zune MP3 players, which failed dramatically in the marketplace. And even its most successful product, the Xbox 360, is something of a disaster: It will never recoup the billions in R&D investments it incurred, was the subject of the worst-ever consumer electronics recall in history because of rampant reliability issues, and despite being in the market for a year longer than the competition, it has been dramatically outsold by the less sophisticated Nintendo Wii.
Careful, Paul. One or two more posts like this and Ballmer will have to fire you.