There is another project that I started called mediaSync which syncs android phones with iTunes. It is free to download, and while it lacks some of the shiny stuff of things like DoubleTwist it does work, its simple to use and fast to sync.
More information for it can be found here:
mediaSync
I just didnt have good luck with DT or Google Music, or Amazon cloud stuff... so I ended up going in a different direction and wanted to share the project with some more folks.
Best wishes to you all.