MultiBit is a lightweight "thin client" Bitcoin wallet for Windows, MacOS and Linux based on bitcoinj. Its main advantages over the original Bitcoin client include support for opening multiple wallets simultaneously, and not requiring the download of the entire multi-gigabyte block chain (2.6GB as of July 2012). The project is lead by UK developer Jim Burton.
- Multiple wallets can be open at the same time
- Synchronizes with the network in minutes
- Shows the last BTC <--> USD rate from MtGox, VirtEx and other exchanges
- Import and export your private keys
- Chart of your balance over the last 30 days
- Free and open source (MIT license)
- Localized in a variety of languages
MultiBit was announced on September 12, 2011.