littleEndian : boolean Is the device big or little endian? (only detected if the browser supports TypedArrays)

fullscreen : boolean Does the browser support the Full Screen API? Source

silk : boolean Set to true if running in the Silk browser (as used on the Amazon Kindle)

epiphany : boolean Set to true if running in Epiphany. Source code:

localStorage : boolean Is localStorage available? Source code:

iPhone4 : boolean Is running on iPhone4? Source code:

safariVersion : number If running in Safari this will contain the major version number.

windows : boolean Is running on windows? Source code:

linux : boolean Is running on linux? Source code:

cocoonJS : boolean Is the game running under CocoonJS? Source code: