Travel Photography - anyone bailing yet on their dslr for the new 4/3rd dslr?

if asked previously, please forgive the oversight.

anyone bailing yet...going from their dslr to mostly new 4/3 format? if so, why? also, what are your views of down-sides in doing so? curious to start the discussion. thank you

You mean the Micro Four-Thirds format? Yes, it looks very interesting and I am reading all about the Olympus PEN and Panasonic GF1, but that's just 2 cameras and few lenses available. I think it will be a while before I will "bail" on my current Canon 1.6x crop system; and more likely when time comes I will get the Micro Four-Thirds to compliment my current system and not replace it.