So GPU mining doesn't work yet? I am only getting ~240 kH/s with an i7 2600 using 8 threads..
Also I enjoy how quickly the Ziftr 'social pool software' idea got completely railroaded

The impression we have is that users are enjoying the CPU mining. It's like the "good ol' days." Because of this we're trying to hold out on the GPU mining as long as we can. This is also giving us time to make our GPU mining software more efficient and user friendly. If someone releases a GPU miner though, or if we suspect people are using them, we plan to release ours to everyone.
Social pools were meant to go with our original mining algorithm, Sign to Mine. Though testing and feedback we found out that people didn't really like the concept of social pools or sign to mine as we had envisioned them (and we had some problems with it ourselves), so we scrapped the idea.