Software Development - mbed
mbed microcontrollers, a series of microcontrollers development boards designed for fast, flexible and low-risk and professional rapid prototyping.
Packaged as a small 40-pin 0.1" DIP form-factor convenient for prototyping with solderless breadboard, stripboard, and through-hole PCBs.
Include a built-in USB programming interface that is as simple as using a USB Flash Drive. Plug it in, drop on an ARM program binary, and its up and running!
Online IDE, accessible with browser - The mbed Compiler provides a lightweight online C/C++ IDE that is pre-configured to let you quickly write programs and compile and download them to run on your mbed microcontroller.
Tusa can be attached to mbed microcontrollers to enable development of RFID/NFC application on mbed platform
More information on mbed is available at http://mbed.org/handbook/mbed-Compiler