Analysts from Disruptive Analysis have predicted a significant increase in the number of customers using 3rd generation (3G) mobile phone networks to make Voice-over-IP calls.

It's estimated that 250 million people will be using "VoIPo3G" by the end of 2012, potentially displacing Wi-Fi and pushing it further out of the market. One reason for this is patchy Wi-Fi coverage, which is not something that 3G's broadly national coverage will have to worry about by 2012.

Naturally the ease of having VoIP on a mobile phone handset also comes into play, as does the ever improving speeds of 3G Mobile Broadband technology. This in turn could displace Wi-Fi from Laptop Internet access too, further strengthening 3G's grip.