I have the sidekick 3 and I'm loving it. It takes a little bit of getting used to. One of the things I noticed is the sound..It's not as loud as the sk2. I guess t-mobile is going for a more professional look. The music player is pretty good although if u want more than 11 songs (which is what u get with the included 64mb mini sd) you would have to get a bigger card(2gb max). The music sounds clear and not like a beat up boom box (like most music phones) and with the included headsets it sounds amazing and really loud. My favorite feature is the new "trackball". It's pretty easy to use and it saves you time when navigating the menus and sub menus. If you have more questions hit me up on aim. username=aimsn.
I have mine. I like the trackball, but it takes a little getting used to. I like that related applications are grouped together in ways that make sense, like IMs together, and calendar, notepad, and tasks together. I like the ingenious design that keeps the keyboard almost the same (it feels slightly smaller and the buttons are smaller but overall barely noticeable) and yet makes the phone smaller/thinner and more comfortable as a phone. They tapered it in the right places.
I like the volume and camera buttons on the outside (where the bumpers used to be); I think they are easier to push intentionally and also easier to avoid pushing accidentally. I don't like the camera, or maybe I just have the settings wrong, but it is hard to ... (continues)