Today Valve Software has announced the forthcoming opening of the Steam Linux Beta for everyone next week. This announcement was made on a closed mailing list. To Valve, the beta version is now stable enough to be opened for the broad masses of testers. After the opening of the beta, Linux users will be able to play very popular game titles like Team Fortress 2, Serious Sam 3, Killing Floor and others natively on Linux. Now it remains to be seen what other surprises Valve is preparing for us.