I am using Opera 20.0 and cannot use Link either. There is no cloud button. I am new to Opera, but not to web development -- seems kind of ridiculous to release a product with features that don't work? I realize it's open-source, but, hmmm... Isn't the "hey random things don't work, play with it" the point of Opera Next?
Should I just uninstall and reinstall 12 if I want things to work? I really like the Speed Dial feature!