Rick and Gary, very well said. I just got a second Book Port to use as a back-up when my main unit goes. Like others here, I have another device, but ours is an uncomfortable relationship at best. For me, it's the long battery life and the powerful navigation levels that matter most. I don't want a rechargeable gadget that I have to remember to plug in every night. I like to read at night and would find it to be very restricting if I couldn't use my unit because it has to recharge. Road trips are great with a Book Port since you can get batteries for it almost anywhere. I keep an extra pair in my fanny pack all the time. With another device, I'd need to take something along to keep the unit charged. The Book Port is a tough act for anyone to follow. Monica Willyard "The best way to predict the future is to create it." -- Peter Drucker