This news is at least a few days old by now, but it seems the official Steam client for GNU/Linux is now out of Beta and ready for use! Ubuntu users could already download the deb package from the steam website. However, if you’re an Arch Linux user, like me, then you’ll find that since the 26th of February, the steam client is already in the official Arch repositories and can be installed with a simple:
# pacman -S steam
Of course as soon as it’s installed it’s time for Steam to start its slow, perpetual update process, but except for that I think this is fantastic!