Not quite. However, my laptop no longer qualifies as portable. It has a 13 port USB hub, hdmi, audio-out, external webcam and mic. At 4 lbs it is just too heavy. Then there are the power supplies. Battery life sucks. Therefore, it is now a stationary computer.
I carry only my iPhone 4 and my iPad. I have DropBox, AirShare, Evernote, Mobileme, PrinterShare, and LogMeIn Ignition on my both devices. They are truly portable devices with good battery life and light chargers. Since each can do most of what the other can, they back each other up. They give me good access to my home LAN, applications, and data. What little they will not do, access to the LAN provides.
The iPad is even more of a game changer than I could have imagined when I bought it.