I remember Microsoft introduced a DRM / certification program they called "Playsforsure".

Two years later they introduce the Zune, which could not play "Playsforsure" music people had purchased from MSN..

Heh, sounds like Windows Phone. Release Windows Phone 7, get early adopters and traction. Thank the early adopters by releasing Windows Phone 8, which is incompatible with existing Windows Phone 7 devices. Also make it use a new app development SDK so that Windows Phone 8 apps don't work on Windows Phone 7 (modulo some weird transition tech that almost nobody uses).

	▲	cjarrett 12 minutes ago \| parent [-]
		The funny thing was they could have done the adaptation--instead of doing it they just presumed devs would transition. They were also done with the android-apps-on-windowsphone project but dumped it because PC marketplace managers got mad at it because then devs wouldn't use their sdk. Luckily we still got the first version of WSL because of that project's partnership with that linux team.