this is an unreleased project, i posted it "if someone wants to play with it...", it was designed so i could hack and debug my xport shield.
its not a direct replacement for the default softwareserial so if you need multiple serial ports, different baudrates or atmega8/lilypad support then this isnt for you. in fact, it isnt even fully debugged so for all i know it may not work in certain situations.
Don't worry about the Lilypad they join at the hip quite nicely via I2C and are inexpensive enough to stack two together to provide the solution I was looking for.
You did an excellent job it's a good start. And there's a great deal of enthusiasm for this as a solution to the nagging problem of only having one hardware serial, so moving it forward is a big accomplishment.