OK I've had mine 2 weeks now.
I first reported on the battery life being terrible. I've found two things that have helped me. I use a lot of internet radio streaming. I was using xiiaLive and I found that it wasn't closing properly and if i force it down the battery obviously is better. The other thing I found was that I had all my sounds set to vibrate and that just killed the phone as well. I get a lot of messages/texts. Once I silenced the alerts or used a sound that also helped. It's still not great. I never make it more than 15 hours or so. I do charge it on an off throughout the day as well. Hopefully this is fixed or maybe I'm just heavy user. I had a DX and it blew away this phone in battery life.
The 2nd issue is that I constantly have drops on my network while streaming and receiving email. It could just be my area (Pitt, PA). The streaming drops way more than the email or it's justs more noticable. Again the DX rarely had these issues.
I'm doing nothing different with this phone than what I did with my DX
Everything else works great.