As you've seen in the news, BITCOIN and other virtual currencies (as they are called) are big news these days. If you are into bitcoins, mining them, owning them or just keeping an eye on them, the first essential need is being updated about the price and exchange rates.
This 1x1 widget lets you choose your desired exchange center (Including the Mt Gox, Camp BX, Bitstamp, BTC-e, Coinbase, Bitpay, BitKonan and few others) in addition to your "to" and "from" currencies and keep yourself updated about the price.
You can choose main virtual currencies (Bitcoin and Litecoin aka BTC and LTC) and select the desired real world currency (USD, CAD, EURO, .. based on the exchange server you select) and have as much as 1x1 widgets you want, showing different exchanges.
Good thing about this widget is its simplicity and straight forward approach toward the goal of "showing the exchange rate" plus simple 24hours or 1Week charts it shows when the widgets are tapped.
In my case the drawback was the fact that it lacks less expensive crypto currencies like Dogecoin. Not having access to supercomputers and huge proccessing power, I myself mine Dogecoin and would be very glad if this straightforward widget was supporting it.