This: >I don't personally think that using a subset of an existing language is a pleasant solution for programmers. The language doesn't get a coherent design,

This: >I don't personally think that using a subset of an existing language is a pleasant solution for programmers. The language doesn't get a coherent design, and you don't know which parts of the language will be present. ..sounds exactly like the kind of justification I would come up with if I got excited about designing a new system. Something that has happened many times :-) (Note: I am just joking here, I have tremendous respect for you and your team mates)