This new version breaks out the PI09, FORCE WAKE, and the hardware reset lines. It also has a different crystal and uses the RN-131C. Project description, more information and ordering can be found at https://www.sparkfun.com/products/9954 Datasheet (RN-131C): http://www.sparkfun.com/datasheets/Wireless/WiFi/rn-131-ds.pdf Reference Guide (RN-131C): http://www.sparkfun.com/datasheets/Wireless/WiFi/WiFlyGSX-um2.pdf SC16IS750 Datasheet: http://www.sparkfun.com/datasheets/Components/SMD/SC16IS740_750_760.pdf Talking Wireless Server Tutorial: http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=158 Experimental WiFly Arduino Library: http://forum.sparkfun.com/viewtopic.php?p=115626#p115626 Experimental WiFly Library (Arduino 1.0): https://github.com/jmr13031/WiFly-Shield WiFly Troubleshooting: http://forum.sparkfun.com/viewtopic.php?f=32&t=25129 Wireless Water Sensor Project: http://lifeboat.co.nz/the-finished-wireless-water-sensor/