Best smartphones:  "Best" is highly subjective but everyone agrees it is not efficient to carry around a cell phone and a PDA (personal digital assistant) now that smart phones combine these functions with  cameras plus they have added the abilty to check your email from your smart phone.  Lets start by seeing what smart phones the major reviewers like:

As of an April 20th review by CNet, their top five smart phones (one from each major carrier plus one onlocked smartphone) are:

• Apple iPhone 3GS
• HTC Droid Incredible
• Motorola Droid
• RIM BlackBerry Bold 9700
• Palm Pre Plus

Now there is the Apple 4G and many others.

Next check the most popular models:  Often there is  "wisdom in the masses" so you should check a list of the  to see what others decided to buy: