Opera next
Opera next is a new way from Opera to try out their new alpha and beta builds without interfering with your regular stable browsers:
Quote:
Easier than ever to tryOpera Next installs a separate pre-release version with a distinct white icon. No changes are made to your original Opera installation. Opera Next also updates itself to the latest alpha or beta so you can experience our newest technology.
Get the new Opera 12 pre-alpha build while you're at it!
