Tablet PC Platform in Trouble?

Once heralded by Microsoft chairman Bill Gates as the future of laptop computing, Tablet PCs now appear to be a niche market that has slim prospects for significant growth even through the end of the decade. Gartner has also lowered its projections and is expected to release revised forecasts shortly.
http://www.betanews.com/article/Tablet_PC_Platform_in_Trouble/1125436715