Following on from last month's report that the original Halo Trilogy had been added to the Steam database, the new AMD PC graphics card drivers also have an entry for Halo 3 as found by kn00tcn.
There is still no official word, but it seems like too much of a coincidence for both Valve and AMD to make mention of it. Smoke and fires and all that..
- Cowboy Out.
Credit to kn00tcn for the catch!