Well, I would be willing to assist with a beta testing for 8890. However, I am not too much of a risk taking person. This fan throttling could void the warranty right, I mean if you throttle fans too low and your cpu overheats, it would void the warranty. I know the intel has a auto shutdown feature (i think,,,) when it reaches a little less than melting point, but I am sure some irreparable damage would be done to other core components.
Anyway, I will test the program on an my 8890. Also, suggestion would be to include something for the video fan as well as an overclocker for that card.
All in all best software package sold would include
fan control--you're working on it
temp monitor--you got it
a cpu clocker--you got it
a gpu clocker--could ripoff pcpitstrip (or whatever its called)

Put it all together with a nice gui
I would actually buy a program like that.... I am seriously impressed with what you have done. Good job.