On the iPhone app, if you sync then lose phone connection while syncing, or even turn app off to do something else while syncing, then try to go into the app when there's no service, it won't show up any articles, even the ones that have synced and saved. For instance today I had it to the stage where it was storing images, then I lost connection (went into the London Underground). Later on the tube train I launched the app again and it wouldn't show any articles as it was still trying to store images despite their being no phone service. The stories had already stored, but it wouldn't show them. This isn't a one off, it regularly happens if I don't manage to complete a sync on the way to the Tube from home - which is annoying as I love reading my RSS feeds while commuting.