I tried the Palm Pre at the Sprint store yesterday. The keyboard is too small, you have to press buttons with your fingernails literally (no full grown adult will be able to type with their thumbs accurately). When you slide the keyboard out the edges are sharp and uncomfortable to hold the phone. The interface is a 90% copy of the iPhone, you got: touchscreen, multi-touch, flick to scroll, acclerometer.
There is nothing game-changing about this phone, ie: nothing every other company or operating system such as RIM or Android will be emulating. Lastly, they have about a dozen apps made for the Pre. Palm hasn't released the SDK yet to vendors in general, it'll take about a year before you get full functionality out of this "smart" phone but until you get the apps (Skyscape, Epocrates, iSilo, Pepid, Lexicomp, talking Spanish medical apps for translation, etc.) you have a "dumb" feature phone that has full internet capabilities.
Maybe in 1 to 1.5 years the Pre will have as much utility as an iPhone.