Hello, I have an iphone 4 and i noticed that my 3g connection is really slow, same speeds with gprs, there is no difference. I do not think is a reception issue because I am getting full 5 bars and the 3g icon is visible. I put it side by side with an iphone 3g and using the 3g network, iphone 3g was much much faster. I read some threads about this situation that i might have a corrupt APN config file, I found that file deleted and and then restore the iphone but with no result , then I restore dthe iphone as new and again without any result. Any other recommendatios? Has anyone had a similar problem? Thank for your time.