VS 2005 & C# 2.0, 3.0, 4.0??!

Well people are getting rather confused by some of the messages coming from Microsoft at the moment. The predicted time for release of Visual Studio 2005 is November, and already there is talk of c# 3.0 and 4.0... so does this mean that there are 2 known revisions of the .net framework? 3.0 and 4.0 or are they going to be 2.0.X as the release of the framework... or are we talking about IDE verisons... Version control within Microsoft to the outside world is looking rather confusing. I would imagine that the versionning internally has been published in little bits externally, which is causing confusion. Would anyone like to clarify what is and isn't planned for the release. And if there will be an update a month or 2 after the initial release? Customers will not want to be doing more than 1 upgrade if they can help it... please bear this in mind.

Backward Compatibility

Here is a nice simple question for someone who has been playing with VS 2005 with SQL Server 2000. Is Visual Studio 2005 backwardly compatible with the old SQL Server 2000 stuff?

Basically we have a large quantity of data on SQL Server 2000 and the source feeding this at the moment is on the old 1.1 framework. We are considering upgrading to 2.0 but we aren't ready at this time to upgrade the server, hence wishing to use it with SQL Server 2000.

Any advice or feedback would be appreciated.
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