I cut down my third-party apps to 17, and plan to keep this number low. Also deleted my email account from my phone.
I share everyday photos with Instagram. Keep track of and sync notes to Dropbox with PlainText. Listen to podcasts with Instacast. Tweet with Tweetbot. Message my BlackBerry friends with WhatsApp.
On the second page:
Galaxy Wallpaper by -kol (on DeviantArt) — includes iPad and desktop versions, and it’s much better than the Apple stock one on Lion, believe me.