[Pimmeh]

While do not necessarily concur on the idea that ideas are worthless, I do think that MrDunne is right.
Nothing you can know that isn't known.

Just to emphasize my point. The gaming market is bursting out of it's seams with 'similar' ideas. What differentiate these games is the execution of it. Rather than complain about someone having the same idea, try to prove why your plan and execution are better.