What's New in ReSharper 2.5:
JetBrains ReSharper introduces substantial all-around improvements in performance as well as other usability enhancements. Now you can quickly see navigation destinations at the current position and take advantage of ReSharper's automatic null reference analysis. In addition, ReSharper extends a number of its smart features to Visual Basic code, allowing navigation and search, identifier highlighting, parameter info, and more. Also, ReSharper interface has been improved to provide a more "Visual-Studio-like" look and feel.
Eine volle List der Verbesserungen gibts hier:
http://www.jetbrains.com/resharper/features/newfeatures.html