http://43rumors.com/
this is the site that claimed to be certain of an E-450 coming out in the next couple months. It also is now claiming tow new m4/3 cameras from Oly by the end of the year, and another m4/3 from Panasonic by the end of the year. Its new but seems to be confident in its sources. I suggest we keep an eye on them and support them.
m4/3 rumor: the smaller classic looking camera will be called the m-100, and a second larger m4/3 camera will be released called the M-1, and it will have HD video recording.
edit: looks like they were right about the E450!!