Opera Next runs as a separate browser from other Opera browsers so if you use it and something doesn't work you can fall back to your Opera Mini browser or your stock browser. The icon for Opera Next is white so you can easily tell the difference between Opera Next. Opera Mini, and the full Opera mobile browser.
1. You are running ICS on your Android phone but don't want to use Chrome Beta. One scenario would be that you don't use Google Chrome on your Desktop or Laptop. Opera offers a Opera sync function that works similar to Chrome Beta sync but only works with the full version of Opera for your PC.
2. You are running an Android version anywhere from 1.5-3.0. In this scenario you probably don't have Chrome Beta for Android because Google currently only allows it exclusively for ICS devices. It's a great alternative to Chrome Beta for earlier Android devices.
Opera Next is a seriously fast browser that allows you to have all of the speed you would get by using Chrome Beta for Android and I view it as a bridge browser or temporary one to use until Google allows non ICS devices to get Chrome Beta for Android. Check it out to see the latest innovations by the Opera Mini team, you will not be disappointed.
Developer Website: http://goo.gl/brafe
Opera Next Link: http://goo.gl/9imJa