I think the other area where AAS makes sense is in distributed algorithms, there is a genuinely large amount of work in writing parallel versions of algorithms and they also require clusters.
do you have any reference on how distributed algos and wave mix? I'm a little behind the curve in understanding wave but I can't see the link here.
Google Wave as a platform is a huge step in distributed computing abstraction. If you ever try/tried to implement any app on top of distributed algo you will value the wave possibilities!