O2 has drastically cut the price of its pre-pay mobile broadband dongle by half, although the offer is a brief one.

Until August 4, 2009 customers will be able to kit themselves up with O2's pre-pay USB modem for £14.67 as opposed to the original retail price of £29.35.

Rather than sign up for a lengthy contract or worry about running out of data O2's mobile broadband works on the principle of purchasing internet access on either a daily, weekly or monthly basis, Broadband Genie reports.

O2 mobile broadband dongle

The most flexible option is for a day's access at a flat rate of £2, giving the customer up to 500MB worth of download data.

Alternatively, £7.50 pays for a week with a 1GB allowance; £15 is for a month with a 3GB allowance.

Yesterday O2, the exclusive carrier for the Apple iPhone, teamed up with Twitter to make its users tweets mobile.

Apple iPhone 3GS review

Every O2 customer is now able to switch on text notifications within Twitter and receive replies and direct messages for free. They will also be able to send updates to Twitter as part of their normal text message bundle or for the cost of a normal text.

Follow PC Advisor on Twitter.