They announced a new feature yesterday: broadcast addresses:
Bitmessage 0.2.6 is available. It is a non-critical release with new features:
-- Pseudo-mailing-lists --
When you right-click one of your addresses, you will see a new option: 'Special address behavior...'. There, you may enable the pseudo-mailing-list feature. When enabled, the address will behave as if it is a mailing list: all messages send there will be broadcast out for anyone to see. Users must subscribe to the address to receive the broadcast just like normal. Note that there is no actual mailing list. A user who sets up the pseudo-mailing-list would advertise it by saying something like, "Here is the Newtown Cycling group's new subscription address: BM-abcefghASDFqwerasdfdfQWr. Do subscribe to it and send any status updates to that address for everyone to read! Remember to sign your messages with your name!"
There currently is no user management interface for the pseudo-mailing-lists but you can use the Blacklist/Whitelist to limit the users who may participate.
-- Portable Mode --
Available in the settings, this mode moves the config files to the same directory where Bitmessage is running. This makes it easy to run the client from USB drives and take your messages and keys with you, or to use Truecrypt, or both.
Thanks everyone!
Atheros
https://bitmessage.org/https://github.com/Bitmessage/PyBitmessageI made one for this thread. Subscribe to it: BM-BcLrmwzaeGhJncHC14oq2p4X9pB7d3Ts
I'll try to send out an update there shortly...