In v1.0.0-beta.5b 'barium-bobcat', I think there is a bug where I'm able to slide beyond the last slide, at which point I'm unable to slide back.
I'm using ng-repeat with an array variable that is resolved via ng-resource. After it's resolved, I call $ionicSlideBoxDelegate.update();
This was also broken for me in the earlier build, Nightly 2081.