The DAP I want to buy does not exist yet

[Feldon]

As the subject says, the DAP I want to purchase does not yet exist.

The features I must have:
-At least 8GB in hdd space.
-OGG Vorbis Support
-User-replaceable battery with minimum 12 hours battery life for OGG Vorbis
-No software required for transfer, no OS requirements, just drag and drop on Windows, Linux, Mac or from any device I can plug this DAP into.

Bonus features:
-If the player is 20GB+, then I'd like FLAC support in addition to OGG
-FM Transmitter
-An ID3 database to track/select my songs


Why this choice of feature sets?

I am currently lugging around a personal CD player and my entire CD collection when I go on trips.  It would be nice to replace all of that with one relatively small device.  As such, I need a player that has a big enough harddrive to store my entire collection (lossy formats like OGG are fine).  I am also a firm believer in non-proprietary everything!  That's why I use FLAC/OGG, its why I want a user-replaceable battery, and its why I want simple drag-and-drop with no special software.

As for the bonus features, my entire music collection ripped to FLAC uses about 32GB of space, so if the player is relatively large, it would be nice to be able to use FLAC instead of OGG.  I said above that I take my collection on trips, often these are car trips.  As such, a built in FM transmitter is handy.  Its not required though because I can always buy a third party add on.  The ID3 database is just a nice-to-have.

You will note there is no mention of colour screens, album art, or video playback capability.  This is because for all intents and purposes it doesn't matter.  If you are big on showing off pictures to your friends, you probably own a cell phone or carry your digital camera with you anyways.  If video playback is what you're looking for, get a PMP, not a DAP that does video on a small screen.


What currently comes close?

The closest I've come thus far is probably the iAudio X5.  It meets all my main requirements except for the user-replaceable battery.  The Neuros 2 also comes close, except that it requires special software to transfer songs.  There are probably some other players that meet my requirements, except that they don't play OGG, but I haven't looked into those.


So that's what I'm looking for.  I understand the N3 is probably a ways off due to a number of practical business considerations, but I just thought I'd share what I'm looking for anyways.