I love this piece of advice about being in stealth mode:

Share your idea with others to get feedback instead of protecting it like a delicate flower. If you’re really fearful someone’s going to come along and steal your idea, you’re operating under a fall sense of security; based on my experience, it seems like you should always operate under the assumption that someone else is out there developing a product like (or better than) yours all the time. It makes you better at what you do.

It’s a great post.  Check out the full post here: