Things I liked:

• Type inference: Could have been better, but I will take this any day over the verbose Java alternate
• Binding: In fact this is a great thing. Two way binding and binding with expression.
• Triggers: Need to explore more, but shows promise.
• Timelines: This along with the exceptional support for multimedia will help in creating the next killer app.
• Collections: You can iterate over collections in SQL like syntax which,to me, looks better than LINQ.
• Strings and Dates: Finally they get treated with the respect they deserve, since most of the time one is juggling text and dates.

Things I am meh about:

• Declarative UI design: I believe UI design is best left to designers (software not people)
• Using all the available brackets: All examples look like they have used up every possible punctuation mark

  :,=,{},[],(),;

• Init vs. assignment: The ambiguity on where to use a variable : value and where to use a variable = value

Overall looks good and I am going to spend some time learning the innards of Javafx.

Finally, what I will like to see guidance on how patterns will evolve to address this new form of development. I immediately see a lot of older patterns not longer needed like Singleton, Visitor Pattern, Lazy Loading, Thread Pool Pattern, Observer Pattern and more. Similarly we need to recalibrate a few like the MVC, MVP patterns.