Yeah, but...
Support is under OS not Aperture....So wait for 10.5.2 not Aperture 2.0
Although what you say is true, it is still a cop out for Apple because they did not have to make Aperture wholly dependant on OS X.
There are other applications already supporting the Nikons, Canons, Olympus, Pentax, etc... under the existent system version. Apple does not have to make Aperture a "slave" to OS X.
If we professional photographers need to wait for every Apple OS update to have our constantly updated equipment supported.... well, no thanks. My clients and customers need their photographs now. They won't wait for every Apple OS update to get their photographs. Lightroom, Capture NX, and a whole host of other professional apps. understand that. That is why today, they support Nikon, etc... even under OS X 10.5.1.
As far as professional photographers are concerned, Aperture "pretends" at being an app. for us. What makes an app. "pro" is not just what it can do, but most especially what it is actually delivering. Aperture is not delivering and we don't need a cop out such as wait for the OS X update.