A co-worker just showed me his new iPhone 4 this afternoon. I joked with him that he had interesting timing, and tried to show him the antenna issue. I've never used an iPhone 4, so I figured it would be easy to replicate the issue. It wasn't, and the reception at my office is terrible. I was able to drop a bar off by cupping most of the phone in both hands, but couldn't kill the signal completely. I think my co-worker installed the software update already, so perhaps this is partially why.

I have an iPhone 3GS and have put off upgrading because of the signal issue. I figured there was some media hype, but wouldn't have figured I'd be unable to replicate the issue.