I'm in for a group buy if it happens. The S2TPP Paddle Shifters are probably of the two after a bit of reading today. They seemed to get a real good deal on vwgolf.net.au with "149.95 + 12.95 shipping US for the silver ones and $169.95 for the Black" (DSG Paddle Shifter Extension). Retail is US$195 Silver or US$225.95 (VW). Sorry if it uncool to link other forums, but there are photo's of a MkVI steering Wheel with these attached for those interested.
The only thing that worries me is the possibility that they may interfer with the indicators etc (as on Page 16) and the cost of getting them installed (out of my league).