Samsung's nano-esque YP-Z5 (you know, the one designed by a former Apple employee) is barely out the door, and Samsung already has an upgrade in the works. The YP-Z5F doesn't break any major new ground, but it does add two features that were lacking in the earlier model but are fairly standard in most other (non-Apple) audio players: an FM radio and voice recorder. It also comes in a sort-of-pinkish color, if you're into that. No word on pricing or release dates, though we'd like to see Samsung finally get the 1GB Z5 out the door first.