I'll get the default (and largely true) feedback out of the way:

- Ideas are the easy part, and are not worth much

- Trademarks/copyright/patents are a waste of your time

Now for the positive part:

- if you want funding, and your product is actually a great idea, there's plenty of money flowing around these days: angels, incubators/accelerators, startup/pitch competitions

- it's fun as hell building your own stuff, so go out and build it, start contacting your potential clients/users, and enjoy the ride!