It depends what Penton's objective is.
If it's to get a different perspective, then fine, but if it's to branch out and cover Apple and Android with no reference to Microsoft, then I would...
More streamlined form factor
I still have faith in WP!
Amazing how omitting the Pivots, makes navigation clunky and slow.
Lack of Pivots also make the app awful for one handed use. Now you have to use you're other hand to touch the hamburger...