It's Touted as a service to build a professional mobile website in minutes, but after several minutes I haven't still figured out what it's about. Correct me if I am wrong here, but this looks like a rebirth of old Geocities, Anglefire etc but for the mobiles.
For a change here is an editor that lets you start writing code without forcing you to sign up. It will even compile and execute C and C++ code for you. What exactly happens to code written in interpreted languages like PHP is not very clear.
These two are not related, they just have similar names and similar lack of features, namely SFTP support. Oh and you can lump 'PHP Code Editor' together with these two.