Wow, Lightning 0.7 support on the very first day it's available! Great job Birdy!
I've been using Lightning 0.7 + BirdieSync 1.6.3.0 for about 5 minutes now and it's wonderful! The UI in Lightning is now finally getting close to parity with Outlook... switching between Mail and Calendar is now a breeze. Creating and editing events is now much cleaner (although they still have that accursed 3-click time selector, and don't allow entering "6p" as a shortcut to 6 PM for us American users...)
And of course BirdieSync is working great with it. I couldn't be happier, thanks for a great product!!