No. When I scroll up, that's what I usually want to do: scroll up, see some content that is currently out of view. If that bar appears first, I have to swipe an inch more, which doesn't sound that horrible, but it results in an inconsistency between mental model (swipe down 1 inch, see what is 1 inch above) and technological reality (sorry, you need to scroll 2 inches!).
In the eBay Android app, where I want to quickly compare search results, this annoys the hell out of me.
One of the best things about touch interfaces is the natural mapping between mental model and technology. Let's not break this.