Mylyn is a task oriented plugin that allows for example to assign a set of files to a task. Is there a Mylyn type plugin for Visual Studio?
The closest I've found is Tasktop, by the people that created Mylyn, but it's a standalone application that doesn't integrate with Visual Studio.
(Resharper is irrelevant).
I'll second tasktop. The newest version especially looks nice. Like orip said, it doesn't provide VS integration, but there's a Firefox extension which should be pretty nice... beats using Eclipse purely for Mylyn.