The Apple Store is down as the company prepares to unveil at least one new product at an event in San Francisco today.

Live Feed: Apple 7 March press event: iPad 3 (or iPad 2S, iPad HD)

Apple is expected to reveal the third-generation iPad, of that we're fairly sure, though a debate rages over whether it'll be called the iPad 3 or iPad HD.

As for what the iPad 3/iPad HD will be like, we expect to see a higher-resolution display, more RAM, an updated processor - though not a quad-core model - and possibly 4G LTE connectivity, though the presence or otherwise of this particular feature has been a bone of contention for many Apple-watchers in recent weeks.

The last iPad 3 rumour roundup

iOS 5.1 is expected to be unveiled too, with some sources suggesting a couple of secret features that haven't been present in the beta versions could get an airing.

There is an update expected to the Apple TV line-up but before you get too excited, it's just a new set-top box rather than the smart TV project Apple has been reportedly working on in recent months.

An outside bet is a new Mac Pro line-up, powered by Intel's new Xeon E5 processors, which were announced yesterday. is the place to be to find out first - join us at 6pm GMT for a live feed of the announcements in San Francisco.