I just report what I see with my own eyes. I find the RAW images from the E-400 have a similar quality to the E-1 and the E-330 was different. A lot of that may be due to in-camera processing as much as sensor or anything else but it was noticeable to me. I'll be skipping the E-410/510 as they won't quite fill what I'm looking for right now (still on the lookout for an E-330 - just missed one go on ebay for £233
). Still more than curious about the E-1 replacement though. I hope they're a bit more radical in the sensor design and don't just throw in the same sensor as is in the new models.