While I am all for the discusion of the pros and cons of the device with respect to the N7, the fact that their stock price is following the current market trends, and that there is an improved iPad seems to have little bearing here.
I've seen you mention this bit about Apple stock following market trends a couple of times at least but that doesn't really make any sense. The market may be down but Google and Amazon stock are both up today.
Investors started to sell Apple as soon as the price was revealed. Most analysts had expected a much lower price point. So yeah, Wall Street and investors are concerned.