I arrived at Hamburg on 12th expecting to go through an electronic gate but had my UK passport manually stampted - no queue at all. No fingerprinting. There was a queue outbound, yesterday, 14th, but not too bad. I did see some pre-registration gates but they were not in service.
Presumably the system is being rolled out over time - and if you get a manual stamp you will not to be manually stampted out.
I received an e-mail saying that Eurostar (and presumably French airports) will adhere to French regulations requiring you to have insurance, hotel details and a return ticket (how will airline staff cope)? I'm not sure how this will be enforced - either a simple yes/no answer or having to provide evidence (which I wouldn't have thought possible without completed snarling the system). My sister lives in Switzerland which is in the Schengen zone so I suppose that I could always give her address.