We have the full gamut of devices. An iPad, two iPod Touches, two Kindle e-ink devices, and two Android phones. We also had a Nook Color which we lost. We use all of the devices on a regular basis.
It really depends on what the focus is. If the primary focus is reading, I strongly recommend the Kindle e-ink devices. They are a pleasure to read, and last for weeks on a charge. They are also very light and easy to hold, and a few ounces in weight matter much more after a few hours than you might think.
If you want a mixed device, I think the best bang for the buck is probably the Kindle Fire, although I haven't used one. The Nook Color was a fine little tablet as well, and the Kindle Fire has more horsepower so it should do better.
The iPad is at the premium end, and frankly I wouldn't get one solely for my DS10. However he has a iPod Touch that he loves, although admittedly that's really neither a reader or tablet. While we use the iPad all the time, I really don't use it for reading.
Last edited by mithawk; 03/15/12 06:04 PM. Reason: Added Android phones
