Challenge didn't start yet but we are crunching a steady 25k wus per day over the last 15 days which is awesome. Each wu manages 2k Q values.
In terms of overall points:
7-Day Ave: 3,659,232
28-Day Ave: 3,080,431
Personally started crunching NFS@Home on the 3rd/4th of July and since then I've been trying to get more people involved on the project. Please check following graph:
60-day credit graph