Need some iPhone feedback

[CO Hummer]

I just had my cell phone stolen today. I left it in a store and walked out to my car. I realized it immediately and walked back into the store to get it. To make a long story short..... A woman found my phone and gave it to people at the counter. 2 minutes after that some young teenager walked up and said "hey, I left my blue Motorola KRZR. Have you seen it?" They handed my phone over to her.

So..........

I was in a rush. I ran over to the AT&T store and suspended my phone. Then a quick bought and iPhone. I haven't set it up yet.

What are the coolest things it can do? Where to I get free software? Is there any? I bought it mostly so I can surf the web while I'm in meetings and at the airport.