There’s something in the air in the Apple community, and this time it’s not the same old buzz about a next-gen iPod, Steve Jobs’s health or a Mac tablet: It’s the sour topic of the iPhone 3G’s poor data reception. Specifically, people aren’t happy about how fast the iPhone downloads data over AT&T’s wireless network. Many have reported that the phone frequently switches from the faster 3G network to the older, slower EDGE network without warning — or drops the data signal altogether. A