Looks good. The only thing difficult in the bio/med community is actually gather some audience. Let's hope to get something, it would be a good resource.
Hardly bad, literal yes, almost. 'Chaves' (keys, braces, staches in the post's joke) really come from the mathematical term 'chaveta', a punctuation, symbol that serves as a opening and closure in mathematical terms, hence the term as a key and not as brace (what would be better translated as braçadeira).
I like MatLab, but for me (biologist) it's a very intricate language to learn, and AFAIK not easy to use in multiple platforms where you don't have the framework installed. And "expensive" too (as Mathematica).