I know we have a lot of talented people here. Piece of advice, what ever you build, believe in it. See it through. No matter how good of an idea incompleteness won't get you anywhere.
After all every other day we all analyze different successful products and say "huh... that's nothing. Even we can do that".
Well thats the difference "We" can do that, they DID it.

See your ideas through. Stay motivated =)