iSight was removed from the European stores a while back because it didn't meet environmental standards. It's likely that there is either a new iSight which they will be able to sell in europe again, or the iSight will be built into the displays.
I don't get this iSight Cinema Display idea because then people with multiple displays are going to have multiple cameras, and I doubt that there are that many Mac mini setups who would get an Apple Display setup with it, its a switchers/low end computer, spending more than the computer on a screen isn't in the mind of the average Mac mini customer, so a separate iSight is still viable.
PS. I know that there are people on here with Mac mini/Cinema Display setups, no offence meant to them and their machines.