Keeping tabs on current tariffs
An unadulterated plug follows ...
I've started to collect and publish information on all current tariffs at MobileMeg.Org.
Cost is often cited as one of the single biggest reasons preventing faster adoption of Mobile Data Services by consumers and hopefully this will making these costs clear and accessible to consumers helping them understand whats available and make informed choice.
Check it out and join in at http://www.mobilemeg.org.