Last week Vodafone announced their half yearly results.  What was interesting was that Vodafone now separate out non-voice revenue into messaging and data revenue.

The total revenue for non-voice was 967 million UK Pounds which was approximately 20% of the overall group revenue. 

Voice revenue only grew 7%, Messaging revenue grew 9% whilst Data grew a massive 49%.

So what's driving this revenue growth?  I suspect it's a combination of 3G Handsets now reaching mass adoption combined with the availability of some very good mobile sites, web 2.0 applications and mobile internet usage in general.   I also believe it's due to the consumer friendly 'capped' tarrifs that have been introduced.

You can read more about their results HERE