Walt Mossberg does a great review of the Palm Pre today. If you're considering the device or just curious, you should read it here.
"But on June 6, Apple will get a powerful competitor in this category. It's a beautiful, innovative and versatile hand-held computer that's fully in the iPhone's class. It's called the Pre, and it comes from Palm, the company that pioneered the hand-held computer in the 1990s. I've been testing the Pre for a couple of weeks, and I like it a lot, despite some important drawbacks that will have to be remedied."
"All in all, I believe the Pre is a smart, sophisticated product that will have particular appeal for those who want a physical keyboard. It is thoughtfully designed, works well and could give the iPhone and BlackBerry strong competition -- but only if it fixes its app store and can attract third-party developers."