The OSEPP? Fio board has wireless in mind. This board may connect to an XBee radio (sold separately) and has a connector for a lithium polymer battery which can be charged over the USB connection.

Microcontroller ATmega328P
Clock Speed 8 MHz
Flash Memory 32 KB
SRAM 2 KB
EEPROM 1 KB
Operating Voltage 3.3 V
Input Voltage 3.3512 V
Digital I/O Pin Count 14 (including 6 for PWM output)
Analog Input Pin Count 8
Other Connections MiniUSB (for charging only)
ICSP for ATmega328P (requires header)
XBee module socket
Lithium Polymer battery connector
Dimensions 2.56 x 1.10 x 0.47 inches (65.0 x 28.0 x 12.0 mm)
Power Source USB or external Lithium Polymer battery

Highlights:

? 8bit AVR RISCbased microcontroller running at 8 MHz
? On/off slide switch
? Charging circuit for lithium polymer battery
? Connector for interfacing with XBee modules
? Flexible power source (USB or lithium polymer battery)
? Compatible with existing Arduino software libraries

Features:

The ATmega328P comes with the Arduino bootloader preloaded. Should you wish to update or replace the bootloader there are ICSP (InCircuit Serial Programming) pinouts that can be used in combination with a header (sold separately) for the ATmega328P.

The bottom of the board comes with premounted headers for connecting to an XBee module for wireless applications.

To allow portability the board can be powered by a lithium polymer battery. The board includes circuitry to allow the battery to be charged via a powered miniUSB connection. A resettable polyfuse on the USB path will trip when the current exceeds 500 mA preventing board damage.