I don't think anyone noticed, but this is a little bit fast 
0.05" would look good, 0.1" even better. I think you got mislead by your anim software which cannot show realistic short delays (ImageReady does that). Use the 'preview in browser' feature if you have one.
Also, the shading should change more radically between the different frames, with bright flashes at some angles. Find a hammer and see how it behaves rotating under light.
I think its slowed down a little. I think its just saving the cookies in your history so it still looks the same speed.
yea... i edited the icon details and replaced the files but its not slowing down...
The speed is really fast and should be slowed a bit.
However, at this speed if you look at it while scrolling the page the art slows in a most hypnotizing way.
All this spinning is making me dizzy.