Microsoft will be "eaten alive" because Windows Vista's resemblance to Mac OS X, a leading Microsoft commentator has said.

In a review of the most recent build of Vista, Paul Thurrot writes: "I have certain misgivings about Vista resembling Mac OS X. With its translucent windows, such comparisons are going to be hard to avoid."

The similarities are more than skin-deep, he warns: "Vista's similarity with OS X goes well beyond window dressing. Certain applications, such as Calendar, Sidebar, and Photo Gallery, appear to be directly, ahem, influenced by similar applications in OS X," later he explains, "they're going to get eaten alive for these similarities."

In a general note, Thurrot warns: "There are plenty of small changes too, some of which make sense, some that don't."