[on the future] - One is that Amazon ( NSDQ: AMZN) will become a hardware company and the second is something he's banking on?that Apple's ( NSDQ: AAPL) iPhone will evolve from a niche device to one that gains double-digit market share.

- [on what distinguishes Whrrl] "Foot-streaming" is the reason why Holden believes that they can demand high rates for their ads. Foot-streaming is the act of tracking where people go using GPS: "You are able to say people?who go to these places?also go to these places." Sound familiar? Amazon does that all the time, by showing people what other people buy when they buy a particular book. "This has never been done in the physical world."

- [on competitors] Loopt is like candy because you can see where your friends are, and with Yelp, likely only 1 percent of the audience is really engaged, he says.