i've been waiting for 16-50 samples before ordering. I wasn't expecting top end performance but it's just no where near good enough. A real shame.
what a geat little lens, this and the 12-35 will really tempt some people over from canon/nikon. It probably is a little over priced, it costs the same as the canon 70-200 F4L IS which has much more glass, but I think it's one of those lenses that you're either willing to buy or not. An extra £200 isn't going to stop you.
M43 is such a great system to own with both panasonic and olympus pumping out great lenses simultaneously. As a once die hard Canon owner i'm loving it.