VS2010 and VS2008 project compatibility

Question

Does anyone know if VS2010 will use the same project & solution file format as 2008, or will the 2008 project files need to be upgraded to 2010 format before they\'ll op

Answer 1

There is a trick.

1. Create a new Solution file.
2. Add all the existing projects, upgrading them in the process.
3. Use the old solution file in VS 2008 and the new one in VS 2010.

I did the same thing with VS 2005/2008 and didn't run into any problems.