Every once in a while, I read a post from my PLN about what tools they use to do their work. Recently, Dan Callahan did just that.
So, my work consists of principaling, blogging, and reading. For almost everything, I use my iPad 3. I think it might be the best computer I have ever owned. I primarily use the following software: Blogsy, Echofon for twitter, Reeder for rss feeds, Kindle for reading, Toodledoo for todos, Evernote for note taking and storage, and Notability for handwriting notes and marking up PDFs. I tie everything together mostly with Dropbox. In fact, one of the main ways that I have been able to rely on my iPad is that most of my primary software tools connect with either the cloud or a desktop version. With a few small exceptions, all my stuff is available on any platform.
MacBookPro. Still works great because I loaded it with extra ram when I bought it. Since I started using an iPad, I rarely pick up the MBP; in one fell swoop it became way too heavy.
At school, instead of having the district buy me a new laptop when I started, I decided to go big with a 27" iMac. This has been one of the best tech decisions I've made. The giant screen makes working with data a breeze. It's like having two monitors, but way cooler looking. The full computer is still necessary for intensive work, more complex spreadsheets, and a few websites here and there.
To round out my tool collection, I carry an iPhone 3G that works great on wifi. I only get cell coverage in certain places here in rural Vermont, but I still find the iPhone useful.
That's it for tools. I'll write more about how I use the iPad as a principal and how I plan to use it as a classroom teacher in a future blog post.