IBM Worklight is described as 'Worklight helps you build, test, and deploy native, HTML5, and hybrid mobile apps for Android, iOS, BlackBerry, and Windows Phone devices. The free Worklight Developer Edition gives you tools and an app server—in an easy-to-install Eclipse plugin' and is an app in the Development category. There are more than 25 alternatives to IBM Worklight for a variety of platforms, including Windows, Android, iPhone, Online / Web-based and Mac. The best alternative is Qt Creator, which is both free and Open Source. Other great apps like IBM Worklight are Apache Cordova (Free, Open Source), B4X (Freemium), Appcelerator Titanium (Free, Open Source) and WebDGap (Free, Open Source).
Codoozer is the Thermomix of the software development industry. With Codoozer, you can build professional software without programming. It is great for non programmers to build high quality apps, but also for programmers who want to save a ton of time.
Calatrava is a cross-platform mobile framework that lets you share the core logic of your application across iOS, Android and Mobile Web, but unlike other XP toolkits it allows you to always write the highest quality native UI you need. Read the announcement for more detail.