Announced earlier this month and talked about for at least a year (I think they mentioned this at the 2007 Dev Summit), ESRI is moving away from socket licensing to using the number of cores on the server.
Through November 30, 2007, ESRI licensed server software based primarily on the number of physical sockets on the [...]
ESRI Changes Service Licensing
December 14th, 2007 · 14 Comments · ArcGIS Image Server, ArcGIS Server, ArcIMS, ArcSDE, ESRI
Tags:arcgis·ArcGIS Server·ArcIMS·ArcSDE·cores·ESRI·licensing·maintenance
