AGE: 44
OCCUPATION: Pixel Qi founder
PREVIOUS APPEARANCES ON THE TIME 100: 1
PRO: As the developer of the X0-1 netbook — a $100 computer built specifically for children in developing countries — Jepsen proved that computers can be low-cost without being cheap. Now her Pixel Qi is working on a new laptop screen that could potentially cut battery use in half.
CON: Some manufacturers worry that netbooks will begin dramatically cutting into PC sales.