Wolfram Computing System

The Wolfram Language is a very compelling Programming System. The power afforded to the user is tremendous. And it does away with much cruft accumulated in our programming tools. WL + WCloud demonstrates languages are Interfaces to Computing, not just abstract machine code.

Embracing the browser as both creation and deployment platforms reduces switching costs + major friction. Unfortunately lots of friction still exists, and it should be reduced for this to be in widespread use. Two major pain points:
### Try-it Memetic Friction

Downloading + installing just to try is painful. [Mathematica Online](http://www.wolfram.com/mathematica/online/) promises to fix this. But, creating accounts would still be painful. There should be one landing page where users can just try it with no friction. Click link -> type -> mind blown. This is also much more likely to be spread.

Examples:
- http://forio.com/julia/repl/
- http://tryhaskell.org
- http://play.golang.org
### Plugin Output Friction

Some programs are created to be consumed by viewers. CDF is already leaps and bounds beyond others, but forcing a plugin install to viewers is a deal breaker for many (most?). People end up using js (d3, etc) instead. Solution: use emscripten or PNaCl to bring CDF to the web with no friction.

The issue names no repository files, tests, or entry points. Start by reviewing the linked browser-based examples and the discussion of Mathematica Online, CDF, JavaScript, d3, emscripten, and PNaCl; done would require clearly defined, friction-free browser use and plugin-free output.

Written by the indexing model from the issue text.