COUGARBLUE I've used iCyclone for about 3 months on my MacBookPro. I found that it did indeed reduce the heat coming out of the bottom of the MBP when I was holding it on my lap or using it in bed. I normally had it set at 2000 or 3000 rpm in manual. When I did a startup, regardless of my previous settings in would go into Automatic mode. That brought about a serious problem all users of iCyclone need to be aware of. The program had my fans running at 5000-5400 rpm which destroyed both fans. I cannot use the computer until I get an expensive repair. The only warning was a sudden rattling noise which got louder over 2 minutes then the fan died. One fan died a day after the first, when I thought I had disabled the program. Unfortunately I did a restart, the program started in Auto mode, killing the fan in less than 5 minutes.
My advice DON'T USE iCYCLONE in a MBP or risk killing the fans. They are NOT made to operate at 5000+ rpm which iCyclone will push them up to.
(Version 0.9.4)