I saw this advert on the Tube in London a few days ago. It’s an ad for Hotmail, but when I looked closer it appears that Microsoft is using Apple’s Pro Keyboard and either Pro Mouse or Magic Mouse in it. It’s not the first time when Microsoft used Apple’s products in their marketing materials. Back in 2005 they used iBook on Windows Vista website.
Here’s a screenshot below, iBook is in a red square.
CC by re-ality
Still it looks a bit odd to me because Microsoft is making their own range of keyboards and mice for PCs. Below is a closeup of the image, you can see that they flipped image horizontally, mouse and numeric pad on the keyboard is on the left side instead of right.