I know it’s awesome, but the iPad is inherently device meant for consuming, not producing. By getting the iPad you’ll spend more time consuming and less time producing.
That’s actually one of the reason I don’t have one. Every time I considered getting one, I thought I would never get anything done with it, besides playing games, reading books, and watching movies. However, I already have devices dedicated for these activities: my iPod Touch, my Kindle and my Mac.
Also, every single person that I know that bought it thinking they would use it to work end up stop using when they realize that they can’t achieve any work on it.