I also the rechargeable battery pack that the A-15 has. Some people are saying that they don't mind the display. So the best thing to do if you're interested in the Everex is to go to a store and try it. If you don't mind the display, it's a great little unit with 4 more meg of memory than the Casio at the same price. 8meg of ram.
Display is hard to see .
Voice recorder playback is static in the background. Sound event bug. Let me know your comments on the Everex A-15.