Title say it all : how to open Visio files in Linux ? Better yet : is there an app that can not only read, but write Visio files ? Google say no so far ...

Microsoft has announced a few improvements being made to Visio on the web, including the ability to add links and copy diagrams across files. It has also detailed a few recently added features.

ConceptDraw Viewer 2.0, CS Odessa's free file opening and printing utility for its ConceptDraw line of diagramming and drawing applications, now supports Visio XML documents.