Thanks for a great miner, it runs my two 750ti's for weeks without hiccups.

I have suggestions:

Can you add in the Interactive (-i) flag that CudaMiner has? To make the miner not take up 100% of a cards performance?

I also have a gtx660 and it would be nice to run it from your fork so that i could work on the desktop GPU as well while it mines.
In CudaMiner you can specify e.g '-i 1 0 0' to make gpu 0 interactive, while gpu 1 and 2 run at 100%.

Also would it be possible to add in Scrypt and possibly Neoscrypt? I know Nvidia doesnt do these very well, but sometimes i mine just to heat the house at winter (many others too!)

Edit: Maybe someone could take a look at the X13 module that was added in too?
My GPU graphs in Afterburner for x13 compared to x11 shows that x13 has quite a few 'GPU Usage' dips to nearly 0% GPU. X11 is quite different. Its like the switching to/from the 2 extra algos goes wrong.
My max hash reached for x11 is 3065 and 2445 for X13. (EVGA FTW edition overclocked +31/+39/+550)