As I type this on my 32 gig wifi iPad that I will be meeting with a genius with tomorrow over wifi issues, I can't help but think the iPhone 4 is using the same wifi module. Why do I think this? During Steves keynote yesterday he could not connect. Why? He said because there were 570 wifi hotspots in the building. Now I understand that be hard on devices, but no one else seemed to be having problems. Otherwise if they were having problems, there would be so many laptops etc in use with these wifi devices. What if this becomes a real problem? I mean face time lagged and Steve was quick to blame ppl not turning off their wifi devices, but I'm not sure.