According to Electronista,
According to HP technical marketing manager Kevin Wentzel, the biggest roadblock preventing multi-touch from showing up on today's PCs isn't a hardware problem, but a software problem. He didn't elaborate much, but the dilemma seems clear: how many applications besides, say, a photo editing program, really require fingers-on-screen that often? And of those, how many would really benefit from more than one finger? Sufficed to say the point-and-click operation logic will have to get shaken up quite a bit before multi-touch will be more than novelty, but there's no telling what HP has up its sleeve. Most of the applications for its new 22-inch TouchSmart PC were developed in-house, foretelling some cool touch-stuff to come, whether Windows 7 arrives on time in 2010 or not.