I am learning currently a little bit of [OpenLaszlo], a [User Interface Markup Language] to build [RIA] (for now, based on [Flash], but I would like to see one based on [DHTML] or even [SVG] stuff). Currently, everything seems to be clean and I really like the sample way to create new components. I still need to explore it a little more but this sound great for now. [Ruby on Rails] also look quite promising… one thing at a time!
[User Interface Markup Language]: http://en.wikipedia.org/wiki/User_interface_markup_language
[Ruby on Rails]: http://en.wikipedia.org/wiki/Ruby_on_Rails