MoSync is an open source mobile software development kit helps users develop complex applications, then build and package your application for many mobile platforms and mobile devices in a few clicks.

MoSync offers fully featured IDE, best mobile development tools and utilities with extensive documentation. It has many built-in libraries including:

• User interface & Multimedia
• Bluetooth / HTTP / SMS
• Map rendering

With this cross platform mobile software development kit, you can develop applications for all major  mobile platforms and the list is getting bigger.