I really love Amarok, and i will love it more if it will be able to handle SMB files.
Really, this is a *must* feature. So, please, implement it.

Maybe, this is related with Kio slaves. Isnt it?

None of our business. It's xine-lib's business. (which already supports smb, but it's currently buggy).

But: Mounting the device will always be better.