It isnt official, but its been leaked everywhere. For the E-600, or “E-620-lite” Olympus took an E-620 and took some features away, and at the same time dollars off the price tag. The missing features are backlit buttons, aspect ratio control, the 3 art filters not present on an e-450 (pale and light colour, light tone and grainy film) and multi-exposure mode.
For more info see Imaging Resources page. http://www.imaging-resource.com/NEWS/1251694801.html