I do something similar to this for a group that I'm involved in. We have a registered twitter account. This account follows all of the group members. If a membe

I do something similar to this for a group that I'm involved in. We have a registered twitter account. This account follows all of the group members. If a member direct messages the group account, this message is rebroadcast. This works regardless of which way twitter decides to go with their settings. The only downside is that unlike the solution mentioned in the article, our solution requires a cron job to poll twitter for any DMs to the group account.