Vista variations to be released ...

[DelJo63]

Microsoft is readying six core Vista packages, or SKUs, plus two additional releases customized
for the European Union that won't bundle in Windows Media Player, as ordered by European antitrust regulators.
The six Windows Vista variants are:

1. Windows Starter 2007;
2. Windows Vista Enterprise;
3. Windows Vista Home Basic,
4. Windows Vista Home Premium,
5. Windows Vista Ultimate, and
6. Windows Vista Business.

for more info see this Feb/06 article