When I go on vacation though, I expect the Kindle will be in heavy rotation as my primary reader though - particularly out in BRC during the day.
Netflix, even with it's so-so iPad interface is frequently in rotation, and when Hulu-Plus -finally- sends me an invitation, I expect to get a lot of use from it.
Videos are in frequent rotation.
I've spent way to many hours on Games (PvZ, Build-a-Lot,BloonsTD)
DropBox/Good Reader/Instapaper get rotated every other day. Innovative Use: I have a Go program that I worship (SmartGoPro) - and every Friday Night, when I get together with a Friend for our six-hour Go session, we go through a bunch of Life-Death problems, both new and old, on the iPad.
All-in-all I really like how the iPad and the iPhone compliment each other. I use the iPhone for taking pictures, Blogging, GPS, SMS, eMail, instapaper a lot. But I find that general browsing I now typically reach for the iPad.
The Laptop at home gets very little use - only when I need to hop onto Terminal.App or use Remedy (Grrrr Flash) do I actually bother to open it up.
WSJ is killer - I open it up every morning and read it on my walk to/from work + they keep improving the App! The WSJ really, really are good. What's going on at the NYT - they've totally lamed out on the iPad.
Of the three magazines I read - Time, Popular Electronics, and Wired - Only wired really wowed me, and now I actually look forward to the new magazine coming out. I haven't looked forward to the day a magazine comes out in 20+ Years (Dragon Magazine).
So, for me - iPad is a huge win. Looking forward to iPad with a retina display. :-)