Has anyone considered or already using DD4T with AppFabric caching? If so, which approach have you implemented (see possibilities from https://stackoverflow.com/questions/17917135/developing-net-mvc3-application-for-caching-using-appfabric-1-1)
We are using AppFabric on our current DD4T project and use it as a distributed data cache. XML from DD4T is cached in AppFabric and in our scaled out scenario all servers connect to this AppFabric cachecluster.
You could also use it as a distributed outputcache (check out the local cache option for performance). One server fills the outputcache, other servers are benefiting from it.