No one is gonna tell you from this site.... Just try to convince your carrier to allow you to tether without extra charges if you're not willing to pay for tetherberry. But we all know your carrier will tell you "NO" so just find the funds and wait till it goes on sale
I knew that the developer would be reading this and hoes he deserve 40$ dollars of our hard earned money - he deserves money but not that much. When yo jailbreak your iphone the tethering apps are free and android. Blackberrys would be so good if you could get free apps like cracked ones. 90% of iphone users have jailbrokeb devices and they only have them because you can jailbreak them! So dont have a go at me for wanting free apps!