An interesting one to note - the Arduino team has updated its Integrated Development Environment (IDE) to version 2.0 (beta). This is the software you use when you program any Arduino board.

Communication can be through Ethernet, serial port or USB, or there is a wireless option through an XBee module for WiFi, Bluetooth, ZigBee, DigiMesh or 802.15.4. For up to 64 more IO lines, up to ...