I'd like to resume this, because if anybody just tried or noticed it out, it's the best way to expaline the interface progresses in this update.

Using the 770 only with fingers is no more a pain, it is a GREAT usability improvements.

Apps such as Navicore and Canola make great benefit of this, and now I am able to use my N770 while driving with no use of the stylus!

IMHO it has been a difference not enough stressed out, and it alone deserves this upgrade.