Many might think we have more than enough web browsers today. There's Google Chrome, Mozilla Firefox, Apple Safari, and maybe even Microsoft Edge on the side. There are also a ton of other browsers here and there, like Opera, but those are pretty much the biggest players. Opera co-founder and former CEO Jon von Tetzchner, however, obviously thinks otherwise. There is always room for one more, and that one more is Vivaldi, which is announcing its entry into the big leagues with its first stable, public 1.0 launch.