Apple iPhone smartphone users across the world are getting ready to see what Apple has in store for them with an announcement that starts at 6pm on Thursday in the UK, 1pm Eastern time, and 10am Pacific time.

The Cupertino based company has promised to outline new features of its new version of its mobile phone OS which saw its last big update 12 months ago.

Version 4.0 as it is being billed is expected to get multitasking, an ad platform, and the ability to print from the phone, with many believing that the iPad will also be getting the new update and its first major OS overhaul just days after its official US launch.

Pocket-lint will be covering all the action from Apple's headquarters as it happens.

Catch all the latest news from the iPhone 4.0 announcement on our dedicated iPhone homepage at