you've strategically hit upon the logo & icon portfolio and blog of UK logo designer Graham Smith — the original Logo Smith since '86.

Amazes me that people will actually spot these subtle differences in the first place, assuming they didn’t get a special tip-off.
I read in the comments on FinerThingsInMac that the new Iconography for Mac OS X 10.7.3 are quite the Micky Mouse style, but with 5 fingers instead of the cartoon 4 style.
Read more FinerThingsInMac

Not sure if the changes are a win. At least the pointing hand looks a little bit incomplete.