If being able to post on the fly, or when you have down time away from the computer, the WP plugin is great. In fact I am using for this post while I sit on the mall bench as I candy shop and the wife is shopping. Setup is a breeze, allowing XML-RPC (settings-write) inside WP site and entering blog info on the app. The app provides the basics for mobility. No plugin functionality, or update capabilities, but having the ability to view and edit post/pages and moderate make it a great tool.