Ipad clones have been emerging in China as early as March and, although I wouldn't call DX exactly mainstream, it is a pretty trustable website to purchase Chinese products from. This morning they listed an "Apad" on their site for just over $100
granted, the specs are pretty poor and this certainly is not an "ipad killer", but root it, 2.1 it, and potentially overclock it and you might be able to at least tell the apple fanboys that you got yours for a hundred bucks.
FWIW there is already a forum emerging about these Irobot Apads, which I pasted below, but i've come to trust droidforums.net as a resource has entitled me with ultimate power over my Droid and I couldn't be happier with this community.
I hope this is the right place to post this thread ( was considering 'accessories' but that isn't really system hardware). I was wondering if anyone has been brave enough to buy one of these devices and if so which one. How does it perform, etc?