I'm just responding with my thoughts on this...
I don't think native vs. a browser based is a 'single feature'. It's huge. Without access to the SDK's real power you lose a LOT of functionality and performance. I would never deliver a PG app to anyone other than an in-house enterprise app that just gets the job done. Sorry, it's just the way I feel about it. I loath those applications. I won't take shortcuts that save me a little time but at the cost of all my customers being pissed off at a sub-standard application. Again, this is my opinion but I do have empirical evidence in my career that supports my assertions.