Apple has been known to drop support for its latest versions of iOS on hardware a couple of generations behind. That being the case, it isn't surprising that a rumor has surfaced saying that iOS 6, expected to be announced during tomorrow's WWDC keynote, will not support the original iPad or third-generation iPod touch. A forum post on WeiPhone claims to have a full list of the upcoming developer releases of both iOS 6 and OS X 10.8 Mountain Lion, and the aforementioned devices are conspicuously missing. Naturally, this could simply be an incomplete list, so we'll have to wait until tomorrow to know for sure.