alvarojusten:
So I decided to write a new library (for now it's called Ethernet_ENC28J60) compatible with Arduino Ethernet examples, Ethernet.cpp, Server.cpp and Client.cpp - to do it I'm writing a socket layer that exposes the same API the standard Ethernet library does.
Very nice! Happy to hear it. Bringing up my ENC28J60 is my next project, so I will definitely check this out. I mostly need a client, so maybe I can pitch in for your efforts 
As to getting it in as an official library, definitely finish it first. Then the code can be reviewed and really proposed.