A think swiping should have a list of All Apps on the left, and a list of All Widgets on the right.

The Navigation buttons should be on-screen (a la Gnex), but instead of the Tasker button it should be the Menu button. Swiping "Up" from the Navigation buttons should (like the Notifications Panel) bring up the Task list.

Recipe:
+ A UI like that
+ "Quick enough" (promised and delivered) updates
+ Competitive Specs
+ Nokia N9 design
= A wet-pants Nokia, but one that can stay warm