Okay, so the ipad is just a big ipod touch, and filling the “device too large to always have on you but too limited to do lots with” between a handy with-you smartphone and a real computer. If it was an accessory to a computer, THEN it would be interesting. Put it on the dock and it acts like a second screen. If you’re reading a PDF or web page, you can send it to the ipad for display, grab the ipad and continue having your reference material up.