My brother got his son an iPod Touch for Christmas. He has an iPhone and his wife has an iPad so they were excited about the kiddo being able to load all his apps onto his Touch (same account, everything should work if they all have the same account registered to the devices). Sure enough - even the great iPhone has problems. Locked the sucker up all Christmas day. He couldn't get anything to load onto it, it just kept saying that it was loading and nothing ever happened. Apple's suggestion - do a factory reset.
It's not just Android. These are not perfect systems and won't be for a long time. The "cloud" seems to be screwing up lots for those devices. My g/f has a 4s and the battery life is TERRIBLE. She can't make it through a school day and is constantly having to keep the thing plugged in. Reminds me a lot of my original Evo with stock battery. The more crap these phones get on them, the worse they will run. I am using a stripped down Nexus and it is the bomb diggity. Reminds me of the battery life that my iPhone 2 used to get.