iOS 7 goes live: Apple centre of Twitter storm as users bemoan slow downloads and error messages

Apple's eagerly anticipated new mobile operating system, iOS 7, because available in the UK late yesterday.

As expected, iOS 7 went live at around 18:00 BST on 18 September, with the option of downloading the update either OTA or via iTunes.

But it was far from smooth sailing for fanboys, with Apple users taking to social media en masse to express their frustration at lengthy download times and error messages.

The error message typically read: "Software Update Failed: An error occurred whilst downloading iOS 7.0."

"What do you mean there's an error? You've only been available for 10min #ios7," tweeted @lionheart_08.

"I've seen this error more than the actual apps I'm trying to use in #iOS7. #Apple have destroyed their beautiful OS!" noted Jonny Wilson, aka @tweetwithjonny.

If you're itching to get your hands on Apple's new mobile OS, be sure to read our step-by-step guide to downloading iOS 7, which serves up a number of tips and tricks for how to get the upgrade without the hassle.

Patience is one apparent virtue, and those downloading iOS 7 today appear to be enjoying a smoother ride.

"Just downloaded IOS 7.0 using mobile 4G broadband and it only took 33 minutes #amazing," said Mark Gevaux, aka @theribman.

What's more, post-download feedback has been broadly positive, with ‏@RoseEllenDix1h enthusing: "Dear iOS 7, you're more beautiful than Cinderella. iOS 6 you're an ugly crier."

Others still have been commenting on the similarities between iOS 7 and Windows Phone 8: "It seems that with the #iOS7 update, I've turned my iphone into a Nokia" (via @danbuckjoyce).

Apple first unveiled iOS 7 at WWDC 2013, subsequently announcing the public release of the new software at the iPhone 5S and 5C launch.

It is rumoured that Apple is already prepping its first incremental update to the refreshed system, with some reports indicating that iOS 7.0.1 could arrive as soon as Friday.

Read more: iOS 7 vs Android 4.3: Apple makes major progress, while Android stalls