Surround yourself with smart, dedicated people - to build something isn't a one-man show. It's more important to have smart people who really believe in what you're doing than really experienced people who may not share your dream.

As an investor, what we're not looking for is 'oh this is a cool app,' it's 'is this something that can become a big business?' You need to find those that can become real businesses.

As an entrepreneur, if you're the originator, you need to be faster than ever.

We have 2 million users in the U.S. and about 13 million worldwide in more than 200 countries. We're getting 80,000 new users each day. And more than half a million people are connected via Skype at any given moment.

Angry Birds is one of the fastest-growing online products I've seen, growing even faster than Skype, and the company has done a brilliant job of extending it across different platforms and merchandise.

We also have a conference call feature where up to five people can talk on one Skype call.

International markets are much bigger than the U.S. In Sweden we have 9 million inhabitants, and if you're successful in Sweden, you're not successful - it's such a small market.