Core admin: create new core

[Bram Van Dam]

The core admin CREATE function requires that the new instance dir and 
schema/config exist already. Is there a particular reason for this? It 
would be incredible convenient if I could create a core with a new 
schema and new config simply by calling CREATE (maybe providing the 
contents of config.xml and schema.xml as base64 encoded strings in HTTP 
POST or something?).

I'm guessing this isn't currently possible?
Ta,

 - bram