I have a monthly contract with 3 (14 months now) and the 1GB was never quite enough so I got a Internet/Email Add-on for £5.11 a month when I was about 3 months in.

Got an email today - unlimited data for £3 a month (until the end of the contract) so jibbed the Add-on and copped for this!

Not bad don't you think!

Thats is a good deal but it will probley not include tethering.Meaning if you you wish to use your laptop or ipad with it you will not be allowed,You may want to check as the one tariff is the only unlimited tariff which includes tethering

This is a standard deal, available to any pay monthly customer.

It doesn't include tethering though, as the above poster says.

yep you can add this to any pay monthly contract

I thought it was something new - oops!
Yes, they did explain there would be no tethering and that's no problem so I've gone with it.
Just thought I'd share as to be honest - I was none the wiser