Have Espruino tweet?

Thanks for your interest, DrAzzy!

This is right after uploading the code in #9 without minify.

 1v79 Copyright 2015 G.Williams
>echo(0);
=undefined
>process.memory();
={ "free": 204, "usage": 2836, "total": 3040, "history": 190,
  "stackEndAddress": 536924840, "flash_start": 134217728, "flash_binary_end": 312536, "flash_code_start": 134234112, "flash_length": 393216 }
> 

With minification by Esprima.

>process.memory();
={ "free": 1242, "usage": 1798, "total": 3040, "history": 1219,
  "stackEndAddress": 536924840, "flash_start": 134217728, "flash_binary_end": 312536, "flash_code_start": 134234112, "flash_length": 393216 }
> 

With minification by Closure Simple Optimisation.

>process.memory();
={ "free": 1333, "usage": 1707, "total": 3040, "history": 1218,
  "stackEndAddress": 536924840, "flash_start": 134217728, "flash_binary_end": 312536, "flash_code_start": 134234112, "flash_length": 393216 }
> 

Pretty good improvement ;-) I continue my endeavour.