Here's some news items on recent 2t that may interest you.
http://allworldcars.com/wordpress/?p=10853
http://www.youtube.com/watch?v=fIG9pWldO8U
They don't give up do they ?
A lots of ingenuity here - I love the exhaust valve linkage.
The simple 2T ain't so simple no more - but then the modern 4T ain't exactly simple any more either. And the 2T has the promise of making more specific power for weight .