Available from today, 3 has introduced a $15 per month entry plan for 1 gigabyte of data.

In addition two other new plans include a $29 per month for 3 gigabytes and a $49 per month for 6 gigabytes. All plans are over 24 months and include a USB modem for an additional $5 per month.

3 claims it saw a 138 per cent increase in mobile broadband subscribers (accessing the internet via a USB modem or PC card, via a handset or with X-Series pack) from 82,000 at the end of June 2007 to 195,000 at the end of December 2007.