You can now have mobile broadband on pay as you go and pay monthly phones,
You can buy the new MOBILE Broadband add ons which you can add to any pay as you go or contract 3 mobile account prices start from £10 for 1 gig which is valid for 30days Just log in to you 3 account online and add the add on,
Here is more details
See page 7 of this pdf for pay monthly broadband on your phone and page 13 for pay as you go mobile broadband on PAYG phones :
http://www.three.co.uk/customer/link...=1089021441077
Pay monthly add ons :
http://www.three.co.uk/personal/prod...s_/add-ons.omp
3G modem payg broadband:
http://www.three.co.uk/customer/link...=1196420646323
Also they sell a hsdpa usb modem on pay as you go for £99 and all you do is top it up the same as you do with the pay as you go phone you just add the data add on.
My self i am using it on my hsdpa nokia 6120 with pay as you go sim card and even though 3 say it is up to 2.8mb i always get 3.6mb i have been told that they quote the lower speed so people do not moan about speed problem,