I don't know, to be honest, I'm a little worried this signals a decrease in support for true 4/3rds. (Of course the press release says otherwise, but what else are they going to say, "don't buy any of our remaining E-volt series cameras we've already built...we'd rather eat the loss??") But on the other side, if they really are going for the EVIL camera type design (electronic viewfinder, interchangeable lens) that will require a real-time, full-time live view implementation which just might show back up in the 4/3rds mirrored world, as was in the E330 but abandoned in the later ones. Also having a wider gamut of cameras using the 4/3rds sensor just might accelerate improvement of said sensor, and a cost improvement all up and down the line.
Who knows? I'm still considering either biting the bullet on a 7-14 lens, or the 9-18 when it comes out in September, so I'll have plenty of glass I won't want to replace. So I'll be with Olympus for the forseeable future, and I guess could drop 'down' to micro-4/3rds with the lens adaptor mentioned.... time will tell.