the problem is that a 2-min wait for a boot and a 10-sec wait to launch a browser is not acceptable to many people that have used decent computers before. besides, Flash does not run well on Atom processors. that's a fact. and HP was already bragging about Flash support on the Slate, which, although a nice plus, would leave people with a bitter taste in their mouth when they tried fullscreen playback.
i have the excellent HP tm2 tablet with an Intel SU7300 and 4Gb of RAM running Win7. after tweaking my Services and Startup progs, it still takes it a whole minute to start the tablet and launch IE (takes longer to lauch FF with all my addons. this kind of wait isnt a big deal to me, but the people who have smartphones or have used the iPad, are expecting tablets with 2-sec boots. i would not buy an iPad for the very same reason i would not buy an Atom Slate running Win7: it would be too expensive (HP was planning a $550 price tag) for the half-baked computer experience it would provide.