Rolling this into another goal. :-)
allogenes has written 3 entries about this goal
I have some web ideas I want to do and JS is the way to go!
Also, some scientific associates are using it as a cross-platform development system and that seems really cool. With a good html5 compliant browser like Chrome running pretty much everywhere, it means code it once and it works for everyone.
Plus…I hate Java and would rather learn any other language! :-)