[Swarm-GIS] PostGIS

[Marcus G. Daniels]

Does anyone have experience with this package?

http://postgis.refractions.net

I'm wondering how many queries a second (on, say, a 3Ghz P4) of the kind 
"look around" it could execute using several layers of feature classes, 
and how many transactions a second it could handle (agent moves). 

More generally, has anyone tried (with Swarm or otherwise) using a real 
geodatabase to hold agents and the landscape?

What I basically want is something like ESRI's ArcObjects geodatabase 
but something I can scale up on a Linux cluster.
I imagine having incoming/outgoing agent queues on each node on the 
cluster to handle agent migration, and instances of PostGIS (or 
whatever) running on each.