[phantom_oracle]

If you fear competition, than you probably shouldn't be in the startup game.

Even if someone can replicate your product, they can't replicate your sales/marketing efforts (especially if it is very personal).

This is why your inferior product can sometimes own 80% of a market, either through being first-to-market (with a big enough marketing budget) or cultivating strong relationships with your clients that them walking away from you to a 'better' product would hurt them in the long-run.

Don't feel afraid to share your working product (sharing ideas is a wasted exercise these days - especially when we all have 'great' ideas).

Part of patio11s success with Bingo Card Creator was probably his blogging, not that he has the only "bingo card creator" software out there in the world.