I'd still prefer 200$ tegra2 tablet with bluetooth keyboard. Besides almost 1000$ for 64gb version with 3g is just too much IMO.
EDIT:
Don't see it becoming gaming machine. No hardware keys, only touchscreen(huge screen which is a downside cause your fingers will have to travel a lot when controlling) and have ever imagined playing anything on something so big while sitting on couch? Don't think so...
In regards to gaming, the iPad could be huge with real-time strategy and roleplaying games. I could easily see Square Enix release the whole Final Fantasy franchise (after all, Final Fantasy I and II are already coming for the iPhone) on this device or Warcraft / Starcraft / Diablo from Blizzard.