They failed pretty badly on that engine. They stated a weight that was wrong (much too low) and the power output was not much to talk about either, so granted everyone who got one was very disappointed. So without any good reviews from any users I guess they simply stopped making it...

The engine might not be totally bad, the design was similar to the .07GP, another heavy engine from them without much power in its stock form.
With honest and correct marketing they could have found some usage though, I think, as easy handling quiet running engines.