I have the Hubpages App for the Iphone and the only thing that you cannot do right now is add new hubs. You can check your hubs status, post to forums, ask questions, or feedback/fan mail/comments. However, posting a new hub is not an option. My suggestion would be to use your smartphone for what it's worth and type away your thoughts in the notes or email to yourself. Then when you can get to a PC you can finalize your thoughts and post your hubs all at once. This will keep your mind fresh without loosening your thoughts.