I've had the DNA for about a month now...
Last week I got the SIM card issue for the first time
. Restarting did nothing, I've learned you have to pop out the card and re-insert. Hasn't done it since, but I carry the tool in my wallet now.
I use Slacker everyday and haven't had any problems yet.
My old phone (X2) had a problem of massively over pixelating the images attached to the contacts. Apparently the phone compressed the images and then used the thumbnails when the caller contacts you. Resulting in a nice big screen showing off an ugly pixelated image when someone called. It was a problem I was looking forward to getting rid of with the DNA. Unfortunately the problem followed me to my new phone. I've updated my contact images and when I make a call it uses the new image but when someone calls, it still uses the ugly pixelated images!
I'd rather not use an app (like caller ID app) because they're usually not as smooth as the stock phone app. But with that being said, I'm not completely opposed to trying a new app if it comes recommended from anybody.
I'm open to suggestions on that one.
Other than that, the phone runs smooth and I'm very happy with everything else about it.