For Ms. Diedrich, the journey from nurse to clothes seller began last May when she discovered the Poshmark app while browsing the Apple App Store.

WSJ: Apps Spawn New Jobs, Services

Battery life is always a concern, but Apple noted that users would get eight hours of browsing on LTE networks, eight hours of talk time, and 10 hours of video playback time.

FORBES: iPhone 5: What's New

Today Microsoft is fighting for its life against Google, Apple and hundreds of other knock-offs of its office, browsing and database applications.

FORBES: 94% Of Americans Blame Their Computer