The thing is, did proview ever release a product with the ipad name? I don't recall anything of the sort. Apple trademarked the apple name because that was what they wanted to call themselves. Fair enough, because they did in fact end up using that name.
Granted, this isn't really anybody's fault, as they apparently trademarked the name long before Apple released the ipad, nor could they have anticipated what a resounding success it would be.
However, it doesn't seem like proview is doing anything with the name. They simply saw an opportunity where they could sue for big bucks and are attempting to milk it for every cent it is worth. What exactly are they trying to defend against, again?