Siri voice commands

Siri, Apple's new voice control app for the iPhone 4S, does deep voice integration, letting you search not just terms but entire questions. "Do I need an umbrella today?" you ask and the phone may answer, "Yes, it sure looks like rain."

The beta app will also compose text messages and replies, add reminders to you calendar, and send meeting invites.

Read our iPhone 4S first impressions.