Zeev, Sorry to say that I don't know the arrangement, because it has not been officially disclosed by Wave. However, it has been theorized here as you suggest... a royalty paid after the quarter ends.
I'm also unaware of any successes of the IBM ISV product. Sorry. One comment though... this initial set of after market products is not what Wave is really about... these are introductory simple software products, not the infrastructure management and authority functions that we anticipate.
regards