Unfortunately not, the only way to get local files to an Android device is through the Desktop Sync. Have you checked to see if that Idea already exists in the Ideas section? If it does then add your Kudos to show your support. If not, create a new idea and if it gets enough Kudos it may well happen!
Please use the search feature before posting a problem/bug/idea. What's a Spotify Rock Star, and how do I become one? Using Spotify Since March 10th 2009 Twitter: @mechanimal82