As of typing this 14 have already participated and 5 eth had been raised with 39 days remaining.. At this pace i think the sale is going pretty well.
I think it is going smoothly. It is interesting to many developers to see this happen. since most of Github contributions go unrecognized. The hope here is to motivate those folks to contribute while in parallel getting rewarded on Developeo. the whole thing would be automated so you don't have to always report your contributions.