"Why I Love Micro Four-Thirds"

Why I Love Micro Four-Thirds, article. Speculation about the "open standard" aspects of the M4/3 standard. Lenses not tied to a single camera brand, and so on.
It's all good, but even if it does really catch on, it going to take years to really build up a serious range of choices such as this idea promises. Sure, you can use many, many older lenses on an M4/3 camera, but it takes adapters, you lose autofocus and such, and older lenses are not optimized for the high resolution of today's camera sensors (plus most of the lenses were made for the much bigger 35mm format, so they're bigger and you'll double the effective focal length).
(Note: many technical questions are explained in the comments under the article.)
Update: also, do read the comments for the intense and often funny discussions about the merits of the system, especially from Mike the site proprietor.)