Well its not a shell, its garnered at least 29k in seed funding which is a start..
And WM spells there name in all caps and I do believe that as one of the largest waste management cos. in the US, they are expending a lot of effort to move towards alternative fuels since their business, as an NYSE stock, is primarily transport.
But then again, maybe you are right. A lot of people said the same thing when FRPT was PRing "potential", "possible" and the like. Where did they end up, and what major players have JVed with them?