I have been running an Imac, Macbook Pro and an Iphone 3gs for some time now having stopped using PC's at home 3 years ago.
I have been editing on Macs using Final Cut, Final Cut express and Imovie for some time.
I decided to take the plunge and get an Ipad2 in May ignoring those who said it was simply a bigger iphone, its not, its much more than that.
Now with the use of the app Imovie it allows me to film using an HD camera, my iphone or the camera(s) on the Ipad and join them up "on the fly" in imovie for more detailed editing on the Imac later. Brilliant.
Regards to all. Thats just 1 benefit....the are many more.