I've been raving about my Verizon iPhone's solid network service so far, but I knew the real test would come when I attended the SXSW convention. Here's my experience since some of you expressed interest in how it would work out then. My friend had his AT&T iPhone with him, and it got to the point when I was ready to kill him because some of my texts to him kept getting lost, and yet he blamed Verizon... until he realized other people's texts to him were getting lost too. Dweeb. As for my Verizon iPhone's performance: nearly perfect. There were times when it dropped to 3 bars when I went inside the convention center or a hotel for a session, other times when it lost 3G for a few minutes, but it never lost the data connection. Calls were crystal clear and perfect. The worst was when the trade show started and I stood right in the middle of the chaos, then it started to buckle badly. Tweets would take 30 seconds to go through, emails would take minutes to download, and so on. But the voice was still perfect. I took two calls and made one myself at the tradeshow without an issue. Still, I wish the data hadn't taken a hit like that, but at least I could still send out tweets and emails with the network bogged down, albeit barely. That was the only time I had an issue though. As soon as I walked outside the convention center everything was right as rain. As an addendum, I'm staying in Dallas now, and in a fit of delicious irony, I could not connect to my hotel's AT&T wifi to save my own life, so I'm sending this post up via a tethered Verizon connection instead.