Free iPhone app Discover isn’t as polished a solution to hosting, sharing, and transfering files to and from your iPhone as previously reviewed Air Sharing, but for casual use, it’s hard to beat the $0 price.
As most new iPhone/touch owners find out, usually in a disappointing revelation, their devices are the only Apple portables that don’t offer a “disk mode” for easy, thumb-drive-like file carrying and transfer. Apps like Discover (and Air Sharing) create a temporary webDAV network share, allowing Windows, Mac, or Linux systems to connect by adding the iPhone’s IP address as a network drive or, in the case of Discover, using a browser to access the app’s web-based interface.
Check out how Discover works with your files in the screenshots below (click for larger images):
Not pictured are support for Apple MobileMe syncing/transfer and a connection to an OS X-based server.
Discovery is a free download for iPhones and iPod touch models running the 2.0 or later software; the paid ($5) version takes away advertisements.