phonegap/phonegap-android — comment on commit fe3e7041b7b0c19ae258818fb8ff17f17bf760f6
File:  line 0
By johnbender:

@brycecurtis

jQuery Mobile supports the back button in as many cases as possible and uses it for that reason to be a consumer of it's own hash and replaceState manipulation where possible. The canonical example is the close button on dialogs, it simply triggers a call to `window.history.back`. In Android PhoneGap's case, because it was previously monkey patching `window.history.back` to exit the application the jquery mobile dialog close button would trigger a silent exit.

If the intention is for phonegap to support the history object as web devs expect it to be used then removing this code makes sense.