I was going to get one for an MP3 player but then I did a bit of research.
Turns out the microdive is not as robust as IBM would like you to think it is. Countless photographers have reported problems with the drives failing!
I don't have the link but saw a thread about it at
www.mp3.com ages ago.
This was expecially relevant for me since I want to use my MP3 on my MTB and shock resistance is top priority. if photogrpahers are breaking them they must be pretty delicate!
Use at your own risk! On the other hand 340Mb is great & I'm sure it'd be RMA'd no problem if you broke it. But image losing 40 photo's you've just taken somewhere you'll never be again or something . . .
Seb