On the fifth anniversary of its launch, I wrote about the surprising success of Apple's App Store:
Inside Apple, the team building iOS was clamoring for a native software developer kit. "From the point of view of the engineers, we all assumed — or at least hoped — that at some point it would open up to native app developers," said Evan Doll, who helped write the original iPhone software before leaving Apple to co-found Flipboard. "We didn't know what the business implications would be. We just all thought it would be really cool for there to be a whole variety of native apps on the platform."
Apple engineers played around with making their own little apps and games; Doll remembers a co-worker building one called Sasquatch Finder in which the player tried to spot a monster lurking in a forest. "People were making these goofy little one-off apps internally that hinted at the fun and the variety and the insanity of what the App Store could be."