HTC moves software button to the top of the screen

http://www.htc-hub.com/htc/actualites/premieres-images-finales-de-sense-4-0/

If you look at the screen shots the back, home and recent apps has been moved to the top of the screen, this might help with the space bar and home button issue ive had with the nexus.

Furthermore, might bring together the UI considering the updates of apps to 4.0 have in-app back buttons.

Thoughts?