So is this one big opportunity? In one way I’m tempted to go with it and build mobile versions of my sites or a shopping directory of mobile enable sites etc but I’m concerned about potential tracking issues.

Most mobile browsers will handle cookies so that’s ok but what about when incognito mode makes it’s way on to the mobile browser as standard?

Well various networks have different backups in place but are these mobile proof? IP based tracking would look to be a lost cause as I assume my 3G connection could end up with a different IP address everytime I connect. Flash cookies could well be hindered by the lack of a proper Flash implementation on mobiles. Is Veracitag mobile proof?

I’m probably slightly lacking the technical knowledge to know for sure but I’d love to hear from networks about how their tracking will stand up to mobile use.