I wonder if this will force apple to drop the price of the base iPad now. Probably not seeing as they didn't do it for the iPod which had a lot more competition, but the spread between $99 and $499 is a bit too much...
I don't think Apple is really going to feel the effects of this thing in the least.
Also for people that want an iPad, this isn't competition, in the same way that people who want a BMW a Kia isn't competition.