[lassofreak]

One IDE, for all your code. (Especially useful for App projects)

Code sharing also equals error checking, across code.

One book/site/dictionary open at a time.

One style to remember, at a time.

What makes an ecosystem "proven"? Would you not buy an electric car, because the gas engine is proven?

[bigdubs]

An ecosystem is proven if there is good library support for common items, the libraries themselves are well thought out and battle tested, and if there is a good distributed knowledge base for common gotchas and issues.

These things take time and lots of people using a platform, and obviously that usage has to start somewhere, but part of being an engineer is balancing novelty with genuine improvement.