I'm getting one to no bars of wifi when I'm only a hallway away with nothing blocking the router and the phone. When I'm right next to the router I get only two bars. When I have one to two bars I'm getting around 25kb down and over 4mb up when I ran a speed test
My mac is getting perfect signal. I broke my iphone a while back and since my brother upgraded I got his old 3G, I don't know if its been happening for a while or just my router.