I got my Nex-3n a few weeks ago. I love the small size compared to my *ist ds, and I've been pretty happy with the results. Most of the time I shoot with my Pentax-A 50/1.7 lens and the focus peaking and focus zoom is a godsend for manual focus. I also like the settings for creating in-camera black and white photos, especially with my older lenses.
I'm looking forward to playing around with other older lenses, especially some of the more compact ones, even if they aren't the highest quality. I have an Industar 69 on the way from Moscow, and I just got a good deal on a Pentax 110 kit with 3 lenses that should be here in a week or so.
Downtown San Diego:
Snow Leopard (at the zoo at night, handheld):
From the San Diego "Tweed Ride" bicycle ride:
Snapped a few with the 16-50 kit lens while I was riding, the autofocus comes in pretty handy for that