3 have today announced a new one-month contract mobile broadband offering. The package offers 5GB of data allowance a month for £15.

They claim that it’s “Britain’s most flexible and affordable contract” and we’re not going to argue with them. I’ve had a little look around and it is bloomin’ good value compared to the other players in the market.

For the same price and contract terms, Vodafone will only give you 1GB and Orange and O2 will only allow 3GB.

If you’re using 3 mobile broadband on pay-as-you-go at the moment, you’ll simply need to pop a new, free sim card into your dongle. New customers will need to buy a new dongle – they sell the Huawei MF627, E156g and E1550 for £19.99.

The plan is called “Broadband 5GB 1 Month” – I hope they didn’t pay the marketing geniuses too much too come up with that one – and it’s available online here.

Mobile broadband is becoming ever more popular and this is certainly a good deal if you want to go down that path. Consider if you really need to though, many 3G phones will allow you to share your 3G connection with your laptop using apps like JoikuSpot. And the iPhone will now allow tethering – even if this might not be a cheap option at present.