The data increase has been introduced in response to the big take up of mobile Internet and 3G services, up 150% over the last 12 months.

Vodafone had the Nokia N97 Mini on a $49 Cap Plan and now have it on the $29 Cap plan.

The N97 Mini is an excellent media player with a 5MP camera and good music player. It has 8GB of internal storage so room to store music and video files for playing when out and about. The Nokia N97 Mini also has a full qwerty keyboard and excellent connectivity with 3G, HSDPA, wi-fi, bluetooth and GPS.

Vodafone has half price mobile broadband deals on currently. The deal is that you get the first six months at half the monthly cost and then pay the full price over the remainder of a 24 month contract.

There are three options:

3GB for $29 and in the first six months you pay just $14.50 a month. The total minimum cost over the 24 period is $609. Offer code o2922

8GB for $39 and in the first six months you pay just $19.50 a month. The total minimum cost over the 24 period is $819. o2923

10GB for $49 and in the first six months you pay just $24.50 a month. The total minimum cost over the 24 period is $906.50. o2924

See the Vodafone website for full details and order online to take advantage of the free deals.

The Samsung Jet is renowned for its brilliant screen. Combined with a 5.0 megapixel camera its a fantastic device for taking and viewing photos. It’s also excellent for browsing the web. The Samsung TouchWiz user interface makes it easy to do what you want and you can customise your homescreen with widgets to launch your favourite Apps.

You can get the Samsung Jet on a $29 Cap Plan with 3 Mobile over 24 months. The total minimum cost is $696. Take advantage of a special deal on the Jet and get $10 off each month for the first 12 months. Online offer only.

The Nokia X6 is a great multimedia phone with an excellent 5MP camera with video. It has a large 16GB of internal storage, a capacitive touchscreen and an impressive set of business tools.

You can get the Nokia X6 on a $29 Cap Plan with 3 Mobile over 24 months. The total minimum cost is $696. Take advantage of a special deal on the X6 and get $10 off each month for the first 12 months.

The Nokia E71 is consistently hailed as one of the best smartphones of the year with its attractive design, packed feature set and slim build. It’s one of the smallest smartphones and because of this, the keyboard is a little crammed but Nokia has done a good job of making as usable a keyboard as possible in a device which still fits easily into your pocket.

The excellent features of the Nokia E71 include WiFi, Bluetooth, HSDPA and GPS.

3 Mobile and has the Nokia E71 on a $29 Cap Plan over 24 months with nothing to pay up front. The total minimum cost over the length of the contract is $696. As an online special only you can get $10 off each month for the first 12 months.

See the 3 Mobile website for full details and order online to take advantage of the free deals.

Prepaid mobile broadband is ideal if you want to use the Internet wherever you are, whether that’s at home or when you’re out and about. The prepaid plans are flexible in that there is no contract so data can be purchased whenever it is needed.

See the Vodafone website for full details and to buy online.

Get the amazing Apple iPhone 4 32GB for $5 a month on the 3 mobile $79 Cap Plan over 24 months. Total minimum cost is $1896.

The iPhone 4 has a raft of fantastic features making it even more amazing including Multi-tasking, HD video recording and a 5-megapixel camera.

See the 3 Mobile website for full details and terms and conditions.

Get the incredible Apple iPhone 4 16GB for $5 a month on the 3 mobile $49 Cap Plan over 24 months.

The iPhone 4 has a raft of fantastic features making it even more amazing including Multi-tasking, HD video recording and a 5-megapixel camera.

See the 3 Mobile website for full details.

Vodafone will only offer pre-paid plans for the iPad. Recharge costs range from $9.95 to $150. For $150 you get 12GB of data that expires after 365 days. A mid range option is $29.95 for 4GB of data expiring after 30 days. Vodafone are also offering an unlimited data plan for $49.95 which has to be recharged after 30 days.

3 Mobile are offering monthly contracts as well as prepaid. With the prepaid option you can get 4GB for $49 expiring after 30 days. The highest data allowance is 12GB for $149 expiring after 365 days. 3 Mobile are not offering an unlimited data plan.

The monthly iPad plans from 3 Mobile are 1GB for $15 and 3GB for $29.