HP has killed off its a lot ballyhooed Windows 7 tablet PC. The device was first showed by Microsoft CEO Steve Ballmer at CES 2010 in January and was assumed to come the market in mid 2010. But our source tells us that HP is not happy with Windows 7 as a tablet OS and has finished the project.

HP may also be discard Intel-based hardware for its slate lineup just because it’s too power eager. That would also exclude Windows 7 as an OS. So what will HP utilize as an OS? Look for Google-powered devices, which have already been declared. And HP really does look like find out to make a go of the Palm Web OS.

Will Web OS come out as a successful OS for tablet devices? That look likes very unlikely given the dominance of the closed Apple OS and the likely success of the open Android and Chrome OS from Google. To get grip from 3rd party developers with Web OS HP will require selling many units. HP knows how to make and sell hardware, not OS.
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