I am a long time iPhone user who just picked up an iPad 2. I still find myself consistently reaching for my phone when the iPad is just as close by. Possibly habit, but I definitely think these products are very different and don't "need" each other at all. Not something I think I "got" until having them both around and letting my brain decide between them.
I do agree that the devices are not dependent, but I disagree with the first part.
You reach for the iPhone instead of the iPad because the devices are _the same_, and the iPhone is already satisfying whatever task that you're doing.
I had an iPad for the longest time, and couldn't figure out what to do with it. I always had the iPhone with me, and so I was used to using it for all the same tasks as the iPad. Finally, I just gave it to my mom, who uses it around the house and does not own an iPhone
In a way they're very similar, but I think of the situation similarly to my main computer: an 11" laptop with a 27" display that it spends about half the time attached to. Sure, the ultimate would be something that could fit into my pocket but fold out to wall-sized... but until that's available, I'll continue to want devices of varying sizes and levels of portability.
Agreed. I used my iPad a lot before I got a smartphone. After getting an iPhone (which is always in arm's reach), I just don't tend to use the iPad much anymore. Especially since app data doesn't sync between them except stuff on the cloud, so I need to play a game or whatnot on whatever platform I used before.