Wave is Not Done Yet. It definitely has the potential to be phenomenally useful though. markbanang and I are in the early stages of planning a holiday for next year, and as a kind of annotated scratchpad for ideas, it seems pretty amazing.
Still got several invites available if people are interested. See my previous post. Everyone who's posted up to now has been invited.
BTW rysmiel, you definitely live in Montreal, don't you?