Roger Ebert has seen Episode II digitally and admits it's superior to the projected version he'd seen a few days prior. However he still has qualms about Lucas changing the status quo of a digital hollywood. From the Chicago Sun Times:

After seeing the new ''Star Wars'' movie projected on film, I wrote that the images had "a certain fuzziness, an indistinctness that seemed to undermine their potential power." But I knew the film had been shot on digital video, and that George Lucas believed that it should preferably be seen, not on film, but projected digitally. Sunday I was able to see the digital version, and Lucas is right: "Star Wars: Episode II--Attack of the Clones" is sharper, crisper, brighter and punchier on digital than on film.

This will come as melancholy news, I suppose, to the vast majority of fans destined to see the movie through a standard film projector. Although an accurate count is hard to come by, there are apparently about 20 screens in America showing "Episode II" via digital projector, and about 3,000 showing it on film. Lucas is so eager to promote his vision of the digital future that he is willing to penalize his audience, just to prove a point.

But he does prove the point. On Sunday, I returned to Chicago's McClurg Court Cinemas, where I had seen "Episode II" on film the previous Tuesday. On Wednesday, technicians from Boeing Digital Cinema swooped down on the theater to install a new Texas Instruments digital projector, and that's how I saw the film a second time--sitting in almost exactly the same seat.

Watching it on film, I wrote, "I felt like I had to lean with my eyes toward the screen in order to see what I was being shown." On digital, the images were bright and clear. Since the movie was being projected on film on another McClurg screen (both screenings were part of a charity benefit for Metropolitan Family Services), I slipped upstairs, watched a scene on film and then hurried downstairs to compare the same scene on video. The difference was dramatic: more detail, more depth, more clarity.

Head over to the link above for the full commentary and thanks to Andres for the alert.