Even though FeFe doesn't share my point of few on browser-mining (because it might drain the power from Laptops), I think we need to improve on the bitp.it client. Doing some hashing with the CPU doesn't work even with dedicated mining anymore. I believe that the only way to do some efficient mining would be using webGl hashing (there is no popup for it either) with a low or middle Aggression factor. We would at least get some MHashes/s per client. Check out http://www.youtube.com/watch?v=rfQ8rKGTVlg .
Best wishes,
Zyrkon