The Htc HD2 is probably the best phone out there. It can serve as your TV or computer. It depends on how you use it.
The screen is the biggest you can possible imagine. 4.3 inches from corner to corner and it has a resolution of 480x800 which immerses the person into the cell phone.
You don't have to keep track of messages. You can easily view a conversation you are having with that person all in one place.
You can make the home screen the way you want it. You can have the apps you need.
It also updates the local weather for you from time to time.
Qualcomm's latest process speeds up everything for you with 1 GHz Snapdragon.
People have been complaining about the battery life but that depends on how you use it.
It freezes ocassionally because of bad service.
Overall the HTC HD2 is the best phone I have had so far. It does everything I want to do. Right now it has Windows 6.5 but Windows Mobile 7 is coming out soons which will make it even more easier for people and more specialized. It only cost me 48.88 because I bought it from T-Mobile and in Walmart. The phone cost $48.88 and then I had to pay $35 for activation. Then it depends on what type of plan you want.