The PlayStation Network hasn't been entirely stable while Sony's dealing with the aftermath of a major security breach, but thankfully you can always easily tell when the service is available by glancing at your iPhone.
All you need to do is download a free app called PSN Status and ... well, that's it.
The app doesn't really do anything beyond displaying the status of the PlayStation Network — along with a frowning or smiling emoticon, depending on how things are — and offering you the option to share the info via your social media service of choice.
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