The App is dead long live the Meb
The debate around Apps over the Mobile Web (Meb?) has been pretty much been resolved - apart from those who are so vested in Apps they can't see the wood for the trees.
Acording to Ingrid Lunden at Tech Crunch "When It Comes To Shopping, Mobile Web Trumps Apps – Led By Amazon, Says Nielsen"
The main audience in the U.S. (ie 60% of mobile users) seems to be much more interested in using the mobile web over store-specific apps for mobile shopping
" ... as you can see in the table above, apps appeared to attract half as many users as mobile web sites did each month."