Hi Wonka,
The sleep problem in OS-X 10.8.2 also appears with imac's and mac pro's running NO programm's at all
when they get into sleep.
Nevertheless, these computers won't wake up, or wake up with a distorted screen.
The sleep problem in this discussion unfortunately seems to have no relation with the Webkit engine.
By the way:
10.7.5, 10.6.8 and 10.8.1 seem to have no sleep/ graphic issues like mentioned in this discussion.
However, there were other serious graphic issues with professional audio app's,
like Cubase and Logic in 10.7 and 10.8
These problems are meanwhile solved with Apple updates.
Apple changed a lot of graphic related cases in 10.7 and 10.8
And one of these changes in 10.8 is causing sleep mode problems.
I am shure they will solve it.
Try my temporary workaround solution as mentioned before untill the eatable brand
comes with a working update.
Best regards,
Danny