This is a library for the Arduino-compatible WiFly Shield available from SparkFun Electronics: <http://sparkfun.com/products/9954> The library also provides a high-level interface for the "SC16IS750 I2C/SPI-to-UART IC" used in the WiFly shield but also available on a separate breakout board: <http://www.sparkfun.com/products/9981> See the file 'src/WiFly/README.txt' for more detail.