I have iphone 3gs 5.1.1. I got a text today from someone I don't know. I know iphone doesn't personally do blocking. But I read handcent does. And handcent talk was available form the app sotre for free so I downloaded that. Not jailbroken and don't want to mess with that. Any how so if I use that then how to swicth the default sms app so the green icon with bubble never gets texts and it goes straight to handcent?? or there is no way?? Because handcent might block but if the app default app still shows the text then i'm still seeing it thus defeating the purpose of trying to block it in the first place.