Just a clean, simple Bitcoin widget. Customizable refresh interval. Very light battery usage.
Shows the current price from any of the following exchanges in many different currencies: Bit2C, Bitcoin Average, Bitcoin.co.id, Bitcoin.de, Bitcurex, Bitfinex, BitPay, Bitso, Bitstamp, BTC China, BTC-e, BTC Markets, BTCTurk, BTCXchange, Camp BX, Cex.io, Coinbase, Cointree, Cryptonit, Cryptsy, FoxBit, HitBTC, Huobi, Independent Reserve, ItBit, Justcoin, Korbit, Kraken, KunaBTC, LakeBTC, Mercado Bitcoin, OK Coin, Paymium, Virtex, Zyado.
If you'd like to see an exchange that is not in the list, please let me know!
Source code is available here: https://github.com/hwki/SimpleBitcoinWidget
Feedback is welcome.
Added Independent Reserve.
Updated exchanges for BitBay.