Nope.
I actually sold my MBP and got an iMac for the sole purpose of eliminating redundancy. I didn't want to have two portable computers in the house because every time I sit on the couch I'll be faced with the same dilemma: MBP or iPad? Same thing with iPhone and iPad. My iPhone more than covers my needs/wants when I'm on the go. Whether it's checking email at a restaurant, or reading a blog as I wait on an oil change, or playing a game while standing in line somewhere. What's the point of having such a capable phone if I'm going to ignore it in favor of the iPad?
For me, the iPad is definitely an at-home device...hands down!