A new version of the SwapBill client (v0.5) has just gone live on
https://github.com/crispweed/swapbill.
Notable features for this release are:
* support for bitcoin as a host blockchain
* the client supports switching between host blockchains (to work with 'litecoin swapbill' and 'bitcoin swapbill')
* trustless cross-chain trading is now supported across blockchains
* usability improvements for the existing on-chain trading functionality (for trading between swapbill and host coin)
* documentation at readthedocs.org (
http://swapbill.readthedocs.org/)