at $200....no.
BTW, I want one too so not to feel alone out in the cold. I genuinely expected we would see a color device with about an 11"-12" diagonal measure (measure a sheet of 8.5"x11" paper but only the text area and rather than the full 14"ish diagonal of the full page you will see the text/content area measures in that range sans the margins.
Right now you are going to have to spend in the $450-$700 range just to get a 9.7" diagonal screen device in color. Later this year, as in much later, I expect there to be some price cutting but so far the only announced 14" device was/is the Kno and it seems the same engineering sample just keeps making the trade show circuit. Even so they are talking serious cash for them.
One device to watch for is the new Eee tablet which I believe they announced a 12.1" version and that might well get you into the ballpark. Still the price mentioned in the article was pretty pricey when compared to other options.
Pretty much the various brands don't seem in the mood to really challenge Apple, other than Notion Ink and the Adam. I figure once they have that model selling all over the globe larger versions, probably capping out at 12" will show up. But again $200 as a price point is currently not realistic if you want/need a color screen. Even if you are OK with a grayscale EPD (think eink brand screen) you are looking at $329-$400ish for only a 9.7" pretty limited reading device.
Wish I had better answers for ya, mostly because it would make me happy as could be. But the market is what it is.
For reference, and I am too tired to go find it, I opened a thread in the NEWS section with a summary of the tablets announced and/or on display at CES 2011...it's a nice list that could help you see where the state of the art is now and for at least the coming 18-months or so...
I am with ya but we are SOL in the large format reader market for a while yet.