A list of fledgling languages is a very different thing from a list of fledgling language implementations. Haskell is 20+ years old but the Android port might count as &quot;fledgling&quot;. Python is similarly mature but PyPy not so much.<p>If you want to maintain a list of fledgling language implementations&#x2F;ports that would be very cool. Probably a lot more work than just a list of languages though.