As for the iPad, you lose some functionality, but I use it almost exclusively when I'm traveling. I take the netbook for the now-and-then task that I can't accomplish with the iPad. Also, just because of many years of keyboard work, I find it faster to work in the netbook for many tasks. But, the long boot time, shorter battery life and heavier weight make it a second choice when the iPad will get the job done.
So, for the first component of our real estate mobile office, I recommend a netbook with at least a 10 inch screen, and/or an iPad. One definite advantage of the netbook comes in our third step when we talk about printing and scanning. With no USB ports, the iPad just can't do what the netbook can.
Now let's look at the next piece, getting our WiFi access when and where we need it.
