An anonymous reader writes "The Kindle made waves when it came out, but they've now had the chance to calm. How many of you have been using your eBook readers since you've received them? How many of you forgot you had one, and how many of you swear by your reader? I like my single-purpose (well, dual — music player) Sony Reader because I actually use it to read, rather than multitasking myself to death. Is this technology as convenient and useful as you expected?" If not, what refinements or improvements would reKindle your interest?