"Samsung just released in Korea the YP-K5 a DAP which support Mp3, WMA, ASF and OGG files and available in 1,2 or 4GB. The YP-K5 is a DNSE DAP (Digital Natural Sound Engine), but the nice feature here is that it has an integrated speaker, nifty isn't it?"
I'd always thought a small speaker would be a nice feature. It would allow you to use the player as a clock radio or let you let someone listen to a song without having to share your ear buds (ewww!). From the size, it looks like they might have gone for more of a quality speaker than what I had in mind, so no telling what effect this might also have on battery life.