It's July 2015 an the N9 ist still my main phone. Better display for summer ;-) and email, caldav and carddav are working perfectly. N9 is a real worker!

I tried last winter to switch to Jolla as main phone, good to read in the darkness. But I can not use it daily. The main reason caldav can not handle events with timezone information correctly. The events get +1hour in summer. Carddav does not work for me, got it working a little with syncevolution, but not stable. email cannot been configured to display text only. This feature requests and bugs are well documented over 1,5 years at together.jolla.com. As long as this is not fixed, I do not need the featureof a replacable battery (oops I think batteries are very short at stock). Sail on Jolla, nice Phone to play with, not more.