"fair use policy"

My internet connection with t-mobile, allowing me to use my mobile as a modem has a fair use policy cap of 3gb. Is this a fair bit? I dont download music or films, just browse websites. I`ve been on here 2 hours tonight and dont want to be struggling after a week!
Any information gratefully recieved thanks. Jon

im posting this from my pda phone i have the one gb one at 799 a moth im usually on all day on msn and browsing and posting websites. what they really want to avoid is people download shed loads of music i also use it for traffic and tracking dataa and also for sending and recieving email and havent hit my limits yet

Cheers alix. Much appreciated

I got the web and walk package, my emails with attachments arrive every 15 minutes. TomTom uploads traffic information all day and do a spot of internet browsing in the evening, so far not got near my limit. Not doing film or music downloading, that would be a killer.

Andy