FYI, Ludovic Courtès is proposing the that guile version 2.0.7 be released relatively soon; he's suggesting that it be scheduled for "week 48".  The good news for us is that this is expected to include an implementation of SRFI-105... which means that we're already getting traction.

My sincere thanks to Mark H Weaver and all others involved in getting this into guile!

I hope that many other implementations will soon follow....!

--- David A. Wheeler