It's day 27 with the Samsung Galaxy S 4. This is a quick update because I'm on the road for work and getting ready to fly home, but overall, I'm very impressed with the performance of the Galaxy S 4 during my travels. I've been pleased with battery life, even while traveling for work. Yesterday was a busy day for conference calls, and my phone made it through the day with some juice to spare. Separately, AT&T's 4G LTE network is decent in Las Vegas and far better than CES (when an influx of power-hungry people are using it), but that's not an issue with the phone itself.
The challenge is winding down. What do you want to see in the final videos? Let me know on Twitter @PhoneDog_Aaron!