My iPhone homescreen is made up of the apps that I want one touch access to. All my other pages of apps are nothing but folders containing apps that share the same category.
In the top row, you will see my GTD (Getting Things Done) apps. I use 2Do for single tasked items that I need to do on a repeated daily, weekly or monthly basis. It is a feature rich app that is beautiful and elegant. However, as of this post, it has not been updated to take take advantage of the new hardware or software Apple just recently released. Omnifocus, in my humble opinion, is the undisputed King of GTD apps. I use it for all my project management as well as location based lists. It has been updated to take advantage of the latest Apple hardware and software and it's looks "magical" to steal a word out of Apple's recent vocabulary. Then, there is NotifyMe2. This is a push notification app that has one great purpose. It reminds of things I need to do later in the same day by sending me a reminder via push notification or email. It can do so much more, but that is my primary purpose for keeping that app on my first page.
The second row is for note taking. AwesomeNote allows me to take pictures and attach notes unlike the built in iPhone notes app. But it's beautiful UI tempts you to use it for much, much more. WriteRoom is used to journal my workday. It gives you a simple uncluttered UI that along with TextExpander (www.smileonmymac.com) makes inputting text crazy sexy fast. It also syncs with Google Docs for those of you that utilize that service.
The 3rd row contains my most used Social Networking apps. There is Beejive which I believe to be the best Instant Messenger client (also the only one I've used to be fair). There is the usual Facebook and Twitter. Then there is my location based social network app of choice Gowalla. I like it because it easy to use and it's pretty to look at.
In the bottom row, you will see that I have two folders. The first one is a bundle of my favorite apps I don't want to go searching for. This folder contains apps I use on a regular basis such as Apple's Remote app, Words with Friends, the built-in Calculator and Camera apps as well as several others. The other folder is made of Safari bookmarks that I have converted into web apps. I rarely use Safari for anything other than a few sites because my massive app library tends to most of my online needs. However, for those few sites that I tend to visit frequently, I not only have a folder for them, but because I have added them as web apps to my homescreen. I have also made them searchable via Spotlight.
So how do the rest of you iPhone users and abusers set up your homescreens? Share your thoughts!