Portals were a big head-ache for our Company. Portals made our elevations times much longer; the upgrades were painful; it had big performance issues, just to name a few of the problems. We invested a lot in time and money into the portal product, then had to backout. We ended up using "tried-n-true" servlet technology to do the same thing. Tell me why a Mashup Platform like Presto will be any different from a maintenance and elevation perspective?