wifi vs 3g/4g
I had a general question. I'm seriously considering the jump from android to iPhone and was wondering (not that this is a determining factor) does the iPhone (3g, 3gS, 4, 4S) have a setting where it can be on wifi and network at the same time? For example, can I have wifi turned on in my house and have the phone either temporarily bump it off wifi to perform a 3g/4g task? Does that make sense? Or once wifi is on, does it completely take over?
I know with my current android p.o.s. if its on wifi I can't send and receive MMS, but once I turn it off and use the network it sends and receives just fine. I remember my BB being able to have wifi on and network coverage and was wondering if iPhone is the same. Hope this make sense. Thanks