I've noticed, as have many others, that "check for updates" function in iTunes hasn't been working for a couple of days. This occurs in the USA store and others throughout the world. Your iOS device will show an update, and you can update through the App Store on your iPhone or iPad. You can also go to the individual app in the app store and the button underneath it will show "update," which you can do. What it will NOT do is give you a list of updates as it has in the past; it just shows "all apps up to date," which isn't true. Anyone come up with a solution?