There has been a few threads on it if you do a search for "biolite" in the Gotta Love Gear sub-forum.
This one has received the most replies:
I see MEC are carrying it now also.
It's a neat idea alright. On multi-day hikes where you know you will be camping below the treeline it might actually mean a weight saving as you won't have to worry about carrying fuel or spare batteries. You could also do away with treating water and just boil everything as fuel wouldn't be a concern. Will raise the ire of the Leave No Trace contingent though.
wildtrekker, post up your thoughts when you do end up using it.