Posterous Spaces for iPhone makes it effortless to share your thoughts, photos, and videos from just about anywhere. When you first start up the application, after seeing a few introduction screens, you will be able to register a new account or login with your existing Posterous account. After logging in, you will see the home screen:

The reader is where you can keep up with your friends and family by seeing new posts on spaces you follow. The popular tab, selected from the top of this section, showcases interesting and popular content from public spaces on Posterous:

Activity will show when someone subscribers to your space or when someone comments on or likes one of your posts.

Tap the post button in the center to post photos, videos, or thoughts to a space. You can select which space to post to by tapping the space selector in the center of the compose screen.
In the post composer, the media selector will show images that are in your camera roll. You can also choose to take a new photo or choose one from one of your albums.

The location section will allow you to tag a post with your current location. In the Autopost section, you can choose to share your post on Facebook, Twitter, or any of your other autopost services automatically.

The arrow button on the right side allows you to preview your post without settings or the on-screen keyboard cramping your style.