I tried to estimate their return on Reddit (http://news.ycombinator.com/comments?id=4474), but couldn't find even a ballpark number for the sale (paul? ;) ). My best guess is that they did great, but not stratospheric. With Kiko selling for 200K, they can't have done much more than break even.
Perhaps seed money has different economics than later stage VC money, which traditionally looks for 10x return on 10%(+) of companies. Are they getting in early in hopes of getting 100x return on 1%(+) of companies?