Whisper - the problem is that the others have the money and tech's to blow GOSY away when the time is right and the market is ready - all the proprietary things you push are not really that special when it gets down to a company pushing the novel ideas through. You say they have tried and spent millions - not from what i can tell - looks like I-Robot just popped out a model that needs a little tweaking and they are good to go???????