Counterwallet is live on mainnet: https://counterwallet.co

Please BE CAREFUL with your funds! Try an operation with a fraction of XCP or asset, get used to things, and then try more. Please email dev@counterparty.co with any bug reports involving loss or potential loss of funds.

Please BE CAREFUL with your pass phrase. Store it on paper, not on your computer. Store multiple paper copies in multiple different secure places. Do not give it a written description that would tell anyone what it's for (e.g. "My Counterwallet Password: " <=== bad move! ).

Also, please heed the following warning:
Counterwallet is BETA software and is still under heavy development. Please take caution in your use of it for storing and transferring funds on mainnet, and report any/all bugs. The Counterparty team cannot be held responsible for lost or stolen funds, although we will do everything in our power to prevent and rectify such situations.