I got a chance to catch up with Max Katz, Developer Relations, of tiggzi this morning at Mobile World Congress. tiggzi is a mobile application development platform that is hosted in the cloud (Amazon Web Services). tiggzi started off as a prototyping tool. What the team quickly realized is that this cool drag and drop prototyping tool could be extended to actually wire up the controls to RESTful web services as well. This, coupled with a very clean and efficient UI, has evolved into a very powerful productivity tool for mobile app developers. Katz related that their target user is the “citizen developer”. Though the tool is primarily a drag and drop experience developers can still add custom java script to their application. tiggzi can leverage publicly published RESTful web services or those created through back-end services such as Parse. What is most intriguing to those of us who create mobile apps is the speed at which apps can be up and running. Below are a few shots of the UI to give you a sense of how cleanly it is laid out. tiggzi has a free version for a single app – definitely worth checking out.