Does anyone know of a program that is similar to what xdrive.com uses that integrates into the Windows Shell to make their XDrive account seem like a mapped drive?

We've been thinking about starting file storage/hosting, and having something that works similar to XDrive.com's program would be pretty cool.

It's almost like some sort of back end FTP integration or something?

Thoughts?

Thanks

Does anyone have any thoughts on this one?

Look into WebDAV. www.webdav.org. It's the technology behind http://www.mydocsonline.com/, and could be what xdrive uses as well.