What's useful from Intentional and Language Oriented Programming?

Has anything useful come out of Intentional or "Language Oriented" Programming?This isn't a rhetorical question. I'm looking for people who've tried these tools (ie. representing programs in some "higher level" format than mere text and using different editors for different domain specific subsets) and have some comments about how it was, Or recommendations for good tools.( http://www.onboard.jetbrains.com/is1/articles/04/10/lop/ , What exactly is Intentional Programming )...Read more