Now VMware also offers application virtualization !!!
[2]
Application virtualization extends the reach of desktop virtualization from the operating system to the application layer. With application virtualization, you can simplify the delivery of applications. VMware application virtualization technology lets you deploy applications without conflicts quicker than ever before.
Links:
[1] http://linux.philosweb.com/drupal/category/it/software/development
[2] http://linux.philosweb.com/drupal5/files/image_2_2.png
[3] http://www.vmware.com/whatsnew/thinstall.html