I got one 2 weeks ago. If you think it's heavy try walking around with full frame bodies and 2.8 zooms. The Nokton and GH 2 is like a feather in comparison ;)
Then umm buy one? Theres shit loads of them on Ebay? ;-) *shock* I sold mine recently and bought a voigtlander 40mm f1.4 cheap (as I tended to use the f0.95 @ f1.4 and I may go apsc sensor later on...waiting on if the Nex 7 delivers) Now dont get me wrong...the voigt f0.95 is bloody superb...worth every penny...especially for the build..but I was having a heart attack taking it out and about....and its not exactly the most portable of lenses. The best lenses are the ones you use...the old saying goes. The 14mm f2.5 I used more than the Nokton. I wont spend over £300 on a lens anymore. I do miss the Nokton f0.95 for the optical versatility but my heart feels better (as does my wallet)