Playfuls.com writes: "There are two things that we gamers should be interested in concerning the next-gen OS (yes Vista is already last gen...): first, Microsoft's intention to release Vienna only in 64-bit version. Although TG Daily said that Windows Blackcomb is currently available in both 64 and 32-bit versions, the Redmond giant made it clear that Vista will be its last operating system to feature compatibility with 32-bit CPUs. The second aspect is what TG Daily calls the "heterogeneous graphics system", which means that Vienna will somehow be compatible with multiple video cards, from different manufacturers."