This is iChatr for the iPhone 4. It is basically a Chatroulette service for your iPhone 4!! It works great with no lag when talking to people. The only cons in this app are that you must wear headphones to talk and listen to people, you must be in a WiFi zone, and you cannot switch cameras. But overall, this app works great and I hope to see improvements in future updates. This app is FREE in the app store.