I just switched to android, and oh my god, its so awesome! I can't believe how far behind ios has fallen. It is slightly less intuitive than iOS, but I think that's because it does so much more than iOS. Overall, I love it. But I have a couple of questions. 1. On the play store I was downloading an app and my cell signal cut out for a few seconds. Now that app's page is stuck at saying "installing", and any other apps I try to DL just stop at "download pending". How do I fix this? 2. How do I undo? I googled and the results said something about tapping an undo arrow, but I don't see it on my screen. How do I undo? 3. How do I scroll to the top or bottom of a page?