Interesting turbo idea.

[Animal Mother]

Basically a lagless turbo. No wastgeate needed. Only suited to engines with EGTs of 800c or less though.

[dubmeister]

http://www.autozine.org/technical_school/engine/tech_engine_3.htm#VTG

Explains it a bit better- about 1/2 way down -VTG -Variable Turbine Geometry
used in new Porsche 997 Turbo. and most new audi/vw TDI's

[Animal Mother]

[url]
used in new Porsche 997 Turbo. and most new audi/vw TDI's

Have to wait for a bit till some cheap ones come on the market then.