The Weather Channel for iPad This guy is on my home screen because I consult it every morning when figuring out which coat to wear. Fascinating.
(Note - this is NOT the iPad version, but it's all that came up)
Google 411 Another case where the app doesn't show up in the Appolicious type-ahead...probably because there are so many that start with Google. Anyway, this is supposed to be the Google search app. Critical to my everyday experience.
Foursquare Yup, it's dorky. But yes, I also check in everywhere. Hence, homescreen.
Reeder My hands-down favorite RSS reader. He lives on my home screen so that I can quickly and easily amuse myself with feeds while waiting in line at the supermarket.
Twitter I loves me some Twitter. And I stick with the official app, since I've loved it since it was Tweetie.
Facebook If you say you don't have Facebook on your home screen, you're lying.
Flashlight It gets dark in our house. Like, really dark. Since turning on the lights in the middle of the night would make my wife punch me in the throat, I need an easy to get to app to shine a light.
iMExchange 2 I live in Outlook at work. And since the iPhone can't natively sync with Outlook tasks, I use this app to keep track of everything I'm totally behind on completing.