At this point, we don't even know if HP's Slate is still hitting the market -- but one thing we do know is that there's no evidence to suggest that the company will be releasing it with webOS instead of Windows 7. In fact, the two platforms are so wildly different and targeted for such disjoint devices -- never mind the fact that HP and Palm aren't yet united in the legal sense of the word -- that there's virtually no chance that the existing Slate hardware could be effectively used in time for a near-term webOS table