Olympus E-P1 squares off with the Panasonic GF1

The two "stars" of Micro Four Thirds are on a collision course at ephotozine, where they color-chart and ISO compare the two cameras. They also provide a number of other real-world scenes taken with each camera and compared. Pros and cons of each camera, in the opinion of the reviewer, along with conclusions, can be found towards the bottom. (The E-P1 tested there is using the firmware updates).