The Alpha version of Opera 11.5 aka Swordfish which installs as Opera Next is now available from The Opera Desktop Team.
http://i468.photobucket.com/albums/rr44/Maxxwire_Photos/Windows%207%20N/OperaNext.png
~Maxx~
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Opera just recently released the new Opera 10.10 browser with support for an entirely new technology (Opera Unite), and they are already on their way for 10.50 which bring almost an entirely new Opera experience.
Right after 10.10 release Opera has also made available alpha versions of 10.20...