I have an iPhone 4 and I selected "update all" in the app store because i had about 20 apps that showed there were updates for. Now they are all stuck on "waiting" while one is supposedly "loading", but nothing is happening. I've tried two common suggested fixes which I found from internet searches - i.e., I shut down the phone for 5 minutes, and I turned off the internet connection by selecting airplane mode. Is there anything else I can try? Thanks.