I am in an airport right now communicating with my Verizon 5750 which is an awesome air card.
I am also finishing my first business trip with the LG Env cell phone which just rocks. The cell phone part was very helpful (it has great speaker phone capability) but where it really came in handy was its built in GPS and local search features. Being in Manhattan, there's a lot of stuff everwhere but it's really nice to be able to look up the local Best Buy or a good Italian restraurant or whatever and have it show you real time directions on how to get there from where you're at.
It also has email syncronization which is really nice so I can get messages on the road.
My only complaint about Verizon is that they have way too many UserID's and passwords. I can't even get into half of the features because I odn't know all the passwords to my account.
But the phone itself rocks.