EXI parser

Now that Efficient XML Interchange is finally a W3C recommendation [1]
I would like to play with it a see the impact on performance and how
easy it is to debug etc/
What sort of tools are available especially in relation to mobile web?
Anything out there in JavaScript perhaps that I could use to push
messages in EXI rather than bloated full XML?

Lech


[1] http://www.w3.org/TR/2011/REC-exi-20110310/