This is a short update after playing around with the Nook for a while, and some answers to the comments on the previous post.
In general, I can say the Nook is a fun device, and serves its main purpose, reading books, quite well. It's very light and portable, simple to operate, and it's you can change the font size and style for easier reading. I even played a few games of chess on it (it has chess and sudoku apps) to pass the time and it was fun. It does feels somewhat sluggish or even stuck once in a while, and I had to turn it off and on a few times after it became unresponsive.
I also do not expect to use its WiFi connectivity much, given other options for internet access such as a mobile phone. Browsing is not a very fun activity (you can only interact with the site through the narrow touch screen on the bottom, and the eInk display is slow to redraw and not well suited for interactive display).
Also, you can't buy books from the device using the Barnes & Noble online store, since it will only sell a book if you have an US IP address due to distribution agreements with regional book publishers. The solution to that problem is to go through a proxy or VPN on the computer to access the B&N store, and then transfer the downloaded books to the Nook using a USB cable.
The next thing I tried was to load some documents on the Nook, both scans and regular PDF documents. They are resized to fit the screen and cannot be zoomed in, but 10pt font was just legible, so the Nook fits the purpose well enough and I'll be copying my documents to the Nook as well. To my surprise, it also correctly displayed the content of PDF files created from Hebrew documents, although Hebrew filenames were not correctly displayed.
Finally, when you'll have an eReader of your own, remember to download Calibre - a great open source ebook management software.