ITunes Data on iDisk

Question

Is it feasible to transfer the entire Music library to either iDisk or, say, Dropbox? I've just ordered one of the new 11-in MB Airs and, because this is the computer I will have with me when travelling, I wish to use it for iPhone synchronisation. I therefore need to keep my Music folder on the Air, despite the limited 128GB capacity. It occurred to me that if I move the library to the cloud I could use the Air for iPhone sync while still having an up-to-date library available on my home computer (for all except iPhone sync, of course).
If this is possible, is it simply a matter of moving the entire Music folder? I seem to remember that OS X expects to find iTunes data in Documents in the main User folder and I'm wondering what problems I would encounter.

Answer 1

Thanks for your input. I had already considered and discounted these alternatives. Music sharing works only within a network and is therefore not an option for away-from-home laptop use. The idea of keeping the main music library on an external disk is certainly a viable option, but falls down on security--the possibility of data loss and, of course, the difficulty in maintaining a regular backup strategy.
Dropbox, which keeps a copy of data on all your computers and keeps them in sync, is a good possibility. As you say, you have to consider bandwidth and storage capacity. However, once the initial sync had been performed, incremental updates would be minor. There is a snag, though: My iTunes library would max out my 64GB HDD on the Air.
In the final analysis all this is directed towards being able to sync my iPhone with any of my three computers, especially with my Air when away from home for more than a few days. I don't need to sync music, just podcasts, applications and, of course, perform a backup. I think I need to go into this further to see if there is a way of doing this without having to have the complete iTunes library on all my machines.