Wireless networ access

I was wondering if it is possible to access an external hard drive connected to an airport extreme or eventually the time capsule from an iPone or iPod touch. I was thinking about setting one up like a mini "jukebox" and having an iPhone or iPod touch wirelessly connect to my full itunes library on the external drive or a folder on the time capsule drive. My library is pushing 90gigs and obviously can not fit onto an itouch/iphone. So to be able to connect to my library while in my house with all of it's coverflow goodness would be awesome. Is this possible?

Thanks

 

well that sucks Do you think it will eventually be possible?
It should just be a simple network share. it's not rocket science. I should be able to share out the library and access it from any networked device on my network. And it should show up on the iphone/ipod touch under the local library as a network or "shared" library.