You might want to look at:
http://www.tabletpcbuzz.com/forum/IT has 6,700 members already. They have some subgroups in their forum, although I think a software forum, a hardware forum, a developer forum, and a news forum rather than a separate forum for each type of hardware makes more sense. I'm probably wrong though...
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"When the debate is lost, slander becomes the tool of the loser." - Socrates
Vita contingit, Vive cum eo. (Life Happens, Live With it.)
"Life is not measured by the number of breaths we take, but by the moments that take our breath away." -- author unknown
"De omnibus dubitandum"