IOD: SmartShuffle: Refreshing Your Music Without Wires

My Smartphone has 512mb of storage for multimedia content. I dislike managing that content manually to keep it fresh. I LOVE the apple concept that you shouldn't have to. However, I also hate having to tether my phone for the pre-requisite amount of time to my main home media computer to get the updates. Here is what I want: A daily portion of my 512mb refreshed over my data connection. Each day my phone would call up my home computer on its own and replace the 5-10 oldest songs on my phone with 5-10 new "recommendations".  If I want it faster or with more songs I should also be able to use the pass-through connection through my work PC where my phone charges most frequently.  Then it should replace a greater volume.