Juniper Research has calculated that the revenue generated by mobile applications will treble in the next five years, from just under $10 billion in 2009 to $32 billion (£22 billion) in 2015. That figure includes the cost of buying apps ('pay-per-download'), value-added services (including subscription charges) and advertising.

Figures from Ovum and Verdict Research show that the value of internet shopping on mobile phones will more than double by 2013. The UK's m-commerce market was worth £122 million in 2009 – just 0.6% of the £21.2 billion spent on all online shopping - but is set to hit £275 million by 2013.

Although 28% of the UK adult population had internet access on their mobile phones in 2009, only 2.1% used this to shop online.

Mobile phone comparison website Rightmobilephone.co.uk has been asking teenagers about their texting habits. 19% admitting having previously sent a text message to a 'random' mobile number, while 22% said they'd typed an obscene text message and sent it to someone in their contact list without checking who the recipient was.

42% of the random texters said they sent their SMS messages because they were bored. 31% said it was 'just for fun', 11% said it was due to loneliness and 9% were dared to do so. More than half – 54% – said they'd received a reply.

A new research report from Berg Insight predicts that mobile location-based service revenue in Europe will grow from €220 million last year to reach €420 million (£349 million) in 2015, a compound annual growth rate of 12%.

Local search, navigation services and social networking are expected to have the highest number of users, with a third of all mobile customers in Europe expected to be using location-enhanced applications by 2015.