Appcelerator Titanium seem to have hard competitors. APPFURNACE is a graphical easy to use online environments that lets you create mobile apps avoiding design overworking.
In comparison to Titanium Appcelerator, Appfurnace offers a really quick What You See Is What You Get Interface to create your Graphical User Interfaces.
Moreover this environment provides testing online tools, that is, the mobile emulator is integrated in their site.
As you sign-up, you get 1 GB free space and you pay only when you´re ready to publish. When you log-in for the first time, you get a Wizard on how to create you first app.
It supports iPhone/iPod and Android mobile apps.
This environment worths to invest some time on it to know what it is capable to do when in need to develop a first mobile app.