WoW: 60 Days Prepaid Game Cards

Is anyone interested in a service where you can buy these by mobilephone/sms billing??

The price will probally be 2x the normal price due to carrier fees etc.

The reason i ask is because i run a few gaming cafees and have been offered to become a reseller of various game time cards.

Most young gamers would like a paybyphone solution and im trying to figure out if there is a market for this even thou the price will be higher.

so do you guy and gals think there is a market for this?

Thanks
DH