my favorite app
which I use on both my MacBook, iPad and iPhone is: Omnifocus. I've attached a link.
My kids really surprised me for my birthday this year by pooling their money to buy me an iPad.
If you like to watch video on your iPad (big downside for both iPad and iPhone is NO Flash) the you are out of luck with Hulu unless you pay for Hulu+ or better - Netflix. But ABC has a nice app for viewing their shows that doesn't rely upon Flash.
If you like Comics/Graphic Novels - the iPad is awesome for this. Checkout the free Marvel app to get an idea.
In the food category I just downloaded the Food and Wine app a couple of days ago. The app itself is kind of clunky as apps go and to download an issue is a massive download but the articles, recipes, photos and video are very nice. Currently there is a free issue featuring Italian and some wine features.
For a magazine style app I like "MacLife" much better but unless you are really into Mac it may not be for you.
Also checkout the Fotopedia app. There are some extraordinary photos. Really beautiful and inspiring.
My wife and I like to Garage sale on Saturday mornings and I found a really kewl app called iGarageSale and it works as advertised (not all apps in the app store are all they are cracked up to be)
The iPad comes with iBooks but I would also recommend getting the Kindle for iPad. It's free and there are some great books available for Kindle both paid and free.
Regarding the scroll - that is a good point. Let me see what I can come up with. I've added it to my todo list (OmniFocus)
http://www.omnigroup.com/