We’re building a consumer app.

What are the three features that you need to nail?

For the iPod it was 1) Small enough to fit in your pocket 2) Had enough storage to hold many hours of music 3) Easy to sync with your Mac.

For Gmail it was 1) Fast 2) Stored all of your email 3) Innovative interface based on conversations and search.

When building a B2C product, when the purchaser is also the user, you can dial in on the core functionality.

For B2B when you have longer requirements, you may have to cover more breadth.