Ulteo Virtual Desktop: your Linux applications on Windows

Enjoy the power of your Linux applications on Windows without the need to reboot!
With Ulteo Virtual Desktop, you just have to run the application you need to use from the Ulteo panel and its window will show up like any other Windows application. Ulteo Virtual Desktop is free.
A full range of Linux applications are supported in the standard version.
At the moment, you will find a selection of applications that include:
* Firefox web browser enabled with Flash & Java
* The full OpenOffice.org office suite that can deal with your MS Office documents
* KPdf to deal with your PDF documents
* Kopete: the multi-Instant Messaging software that supports MSN and other protocols
* Skype
* Thunderbird + Enigmail (so you can encrypt your emails!)
* Gimp and Digikam to manage your pictures
* Inkscape and Scribus to create great graphics and newspapers
* and... many others!

Read more at this link.