Techradar has been looking extensively at the approaching keynote from a certain Mr Jobs, and although it might be a dangerous practice usually, we’ll go as far as saying there will be an announcement regarding the next-gen iPhone.

But which version will land? Will it have GPS, a 10 megapixel camera and the ability to discover life on Mars? Or will it be nothing more than the addition of a 3G and an 'on and off' switch in the menu?

Here’s a selection of the top predictions on the forthcoming launch:

Gareth Beavis: Mobile phone specialist

Let’s be honest, it’s going to be a let down after all the hype. 3G support will be there, as will haptic feedback and GPS, as well as some great integration with the new Apps store.

Don’t forget the new iteration is also billed as the ‘business iPhone’ thanks to the Microsoft ActiveSync capability, so expect a more powerful email program too.

But ultimately, it won’t be much better than the iPhone we see today - I just hope the Apple team have worked out a way to sort out the battery life issues, as the extra features are going to need some improvements in the power supply.

Adam Hartley: Freelance technology news writer

To be honest the 3G aspect of the new iPhone doesn’t really interest me that much – but then again I live and work in central London where Wi-Fi is becoming ubiquitous. On those occasional times that I venture beyond Zone 3, I may well be glad it has 3G.

For me it’s more about the affordable price, the handy work things such as the push-email features (I never really ‘got on’ with BlackBerry’s awkward QWERTY keyboard) and the fun things I can do with it – such as fiddling with Google Maps on the bus and looking forward to playing forthcoming games like SEGA’s Super Monkey Ball and Will Wright’s Spore.

Is mobile gaming finally becoming something to bother with? I hope so. It will save me having to bundle a DS into my bag whenever I leave the house.

Dan Grabham: Computing editor

Like everybody else, I predict Jobs will announce the 3G iPhone, but I don't think it will hit stores yet - especially in the UK. But what Apple-logic tells me is the iPhone has never been a logical Apple product.