I think what people are seeing is the difference between 10.6 (Snow Leopard) and 10.7 (Lion).
The standard Apple UI elements (buttons etc...) changed, they were blue in 10.6 and grey in 10.7.
Looking at the videos, it looks like they were made on Snow Leopard.

EDIT : Yup, that's what it is. Just fired up my 10.6 drive.

10.6 :


10.7 :


- Jay

Last edited by JayO; 04/23/12 04:38 PM.