I have the Kindle with the 6" display (the version before the current one) and I love it. I never thought I would like an e-reading device, but this has been great for me (and for my 82 year old mother - who got hers as a birthday gift 18 months ago). I think they are pretty sturdy, light-weight, and easy to read from especailly since you can change the font size so easily.
I haven't explored titles that could be used in the Lower School, but I think there are plenty of titles for Middle and Upper School students. When I searched for "elementary school books" it found 840 titles. Of course, not all of them are books for elementary school students...
I know that the school has purchased 5 or 6 Nooks (because we deal with B&N when ordering books for the students). I do not know if they are in use yet or not, and since I don't have a Nook, I don't know how it compares to the Kindle.
They work beautifully with an Elmo or overhead, but I don't think most ereaders would be able to hook up to a smartboard. Some of the smart tablets coming out might; do you know if you can use an iPad in the way you describe?
Click the QR code on your smartphone to grab Sonnet 65 by the Bard himself! An experiment with how to distribute learning resources to students' mobile devices.
Download the QR code, print it, and post it somewhere for students to access. Or post it on your blog or other school website. Get the i-nigma code reader in the App Store or the Android market. It is the reader we prefer. Courtesy of The Learning Mag.