From what I´ve read and seen Panasonic is using a new technology to improve the results of the LX5 over the LX3. They have claimed better iso performance (with less detail), better detail and a 30% increase in DR. From all the sample photos I´ve seen the LX5 shows clearly more detailed results with better iso (not so detailed though) and a bit more dynamic range. Wouldn´t it be incredible to get some of these results on the new batch of micro 4/3 cameras?! The GF1 has about 10,5 stops dynamic range so this would mean an increase to around 13,65 stops dynamic range...which would be incredible but highly doubtfull. Also, getting some clean iso 2000 would ge great! I think will have some nice surprises in Photokina this year regarding mirrorless cameras (and not just from Pana and Oly).