I don't know if anyone noticed this but...
We all know what the Lion means. OS X Lion, period. For the next paragraph, pretend it's not there, but that there's just white instead.
Focus on the apple. Not only it is ridiculously
thin (clue 1), but imagine for a second that you take it off. You'd be left with what looks like a closed Mac Laptop seen from above, right? The aluminum, the white apple in the middle... Now focus for a second on the relative dimensions: the apple is way too big for that to represent a 15'' or a 17''. Even a 13'' would be misrepresented by that. However, if you imagine a 11'' laptop, the apple might just have that size, when in comparison to the rest of the laptop. (clue 2). Another thing in favour of it being a laptop are the corners: two sharp ones, and two round ones (clue 3).
All of these would fit as clues for the much-rumored 11.6'' Macbook Air.
Also, the spinning apple could be a reference to either 3D or the iMac patents with moveable screen, but that'd be sort of a longer shot.