Attached is the working version on my ASP.NET Dynamic Data Controls session, including demo notes and code snippets and hope you enjoyed the session as much as I did:)

And check out the results from the "Why I Love TechEd" SMS Vote - you'll need Silverlight installed to view the graph.  As discussed the data got synced from my phone to my server and the results are displayed using a Popfly mashup and the SMSVoter Popfly block I wrote...  When the flurry of TechEd is done, I'm planning on doing an end to end write up on how this solutions works:)

Click http://www.popfly.ms/users/Glovebox/Why%20I%20Love%20TechEd for full screen version of the chart