[mmox] Service Regions - Cloud Services - overlap?

[Kajikawa Jeremy <[e-mail]>]

Ive been reading about Eucalyptus (http://eucalyptus.cs.ucsb.edu/)
 and AppScale (http://appscale.cs.ucsb.edu/) ...

And it occurs to me that this may be similar for managing regions
  for various VirtualWorld services.

Would knowing each region "type" (SecondLife/Olive/other?)
  have a bearing on how to interact with it from whatever Service
  has as a client-specific front-end?

Allowing for a given service to run "entrance proxy" server units
  for supportable clients into a given system.

maybe an OSgrid.org login server for non-SecondLife clients would
  be possible? ...

where the proxy runs access of the local(hosting) service for the
  non-local-compatible client ...

a per-client instance proxy with local representation of where in the
service
  the client is currently viewing...

Would this kind of "gatekeeper" be plausible using existing
technologies?
  or is this getting side-tracked from the real issues of this group?

Curious,
  Jeremy