ReSharper 4.0 has finally reached beta state. It can be downloaded here.
If you want to know more check out this comparison of plain Visual Studio 2008 vs. ReSharper 4.0.
Here are some of the most important new features of ReSharper 4.0:
- Full support for C# 3.0 and LINQ
- Comprehensive insights into .NET Framework
- Solution-wide code analysis
- Code cleanup
- New Refactoring
- Multiple new productivity features
- Smoother interaction with Visual Studio
- ASP.NET speedup
For a detailed description of these features go to
http://www.jetbrains.com/resharper/beta/beta_newfeatures.html