I can also see you have no idea what you are talking about or what is in development anywhere in the outboard marine market.
The E-Tech engines have not made the EPA 2007 regs. to the best of my knowledge. You are correct in stating that the four stroke engine in that PDF will need to be cleaned up, but it won't be without exhaust aftertreatment. You really can't do much with treating a two stroke engines exhaust which is why all of the two stroke over the road diesels died along time ago. The emissions regulations talked about in that PDF are certainly dumbed down for the general publics reading and beyond that they really don't say much of anything after your read it a couple of times.
To further comment on the technology at hand here all of the E-Tech injection components are outdated and down on operating pressure and control fidelity by atleast 50% from the current hardware in development right now. Besides, OMC did not come up with any of that technology themselves anyway, U.S. Marine did quite some time ago. The a couple of engineer jumped ship to OMC, and they started up their own program over there as the patents had already run out on the designs and technology.
While the Evinrude engine is a good one and has some many awesome features, it is already dead technology that will most likely not even make it to 2010.