This is a frontend application for the official bitcoin node and needs it to work properly.After entering your bitcoin node details you can view your balance and recent transactions.You can also send bitcoins by scanning a QR-code, selecting a bitcoin URL in the browser or entering the details manually.To receive bitcoins the app creates a QR-code with all the necessary information. You just need to enter the amount.Feel free to try it out by donating a coin.If this sounds strange to you check out www.bitcoin.org !Get the sourcecode and submit bugs at http://sourceforge.net/projects/bitcoiner/