Is there any risk while using Visual Studio 2010 Beta 2?

Is it safe to use the beta versions of Visual Studio?

By safe I mean, while developing any project in this studio, is it probable that it may cause some losses to my project? Or any other kind of risk?

Should I just use the studio 2008 and wait for the stable version of Studio 2010?

Purpose of the question: I am doing my graduation project in .NET framework (includes - C#, WPF etc.).So I don't want to put my project at any risk because of some issue regarding (beta) visual studio.Hence the question.

Can I still use Visual Studio 2010?

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As long as you are using a version control system, there should be no problem. Simply check out your project (or better yet, create a vs2010 branch) to an experimental folder and work from there.

There are no hidden risks when you use version control appropriately.