You can find that plugin here: Twitter Tools StatusNet (and should be able to find it soon on wordpress.org).

What I hadn’t realized at the time was just how Twitter Tools itself worked, and what that meant about the StatusNet plugin.

Twitter Tools follows all of your tweets, not just those which you enter via WordPress or generate as new blog post notifications. What this means is that using Twitter Tools in combination with the StatusNet plugin, everything you post on Twitter gets also posted to the StatusNet instance you’ve configured.

Everything you post on Twitter, regardless of it’s source: desktop client, SMS, web client, etc.

This means you’ve got to be careful. If you use Identi.ca, for example, and have your Identi.ca account configured to cross post to Twitter (which is a popular option) you’ll create a loop. You post to Identi.ca, which cross posts to Twitter, where Twitter Tools finds it and (with my plugin in place) cross posts to Identi.ca, which cross posts to Twitter, and so on (repeat until someone tells you your account has gone crazy).

So, you’ve got to decide which service (Twitter or StatusNet) you intend to actually post to, and which you want automatically fed cross posts.

• Post to Twitter, auto-cross-post to StatusNet. This is what I’ve decided to do. I post to twitter, through all the usual methods, and I let Twitter Tools cross post my tweets to Identi.ca. I have different friends/followers on each, and this way the conversation gets shared.
• Post to StatusNet, auto-cross-post to Twitter. This you can do with existing StatusNet instances, and if you do, be sure NOT to install the StatusNet plugin for Twitter Tools.

Hope some of you find the option useful.

Now that Twitter Tools is at 2.x, Alex has provided an API for enabling additional posting.

So I wrote a plugin for his plugin: Twitter Tools – StatusNet.

It leverages the API he provided to post your tweets (on new blog post creation or via the sidebar form) to a StatusNet instance (default is Identi.ca but it can be easily changed to another). (In case you missed the announcement, the software formerly known as Laconica, which powers Identi.ca but also other sites, is now known as StatusNet).

Given that many StatusNet instances also already cross-post to Twitter, my plugin enables you to suppress the actual posting to Twitter that Twitter Tools does. (You can have notices posted to both Twitter and your StatusNet instance, or just your StatusNet instance without Twitter).

What it doesn’t do is provide all the functionality Twitter Tools provides – digests of your notices, a sidebar widget containing latest notices. If you cross-post to twitter you can use all that functionality from Twitter Tools natively.

If you’d like to replace Twitter throughout Twitter Tools with your favorite StatusNet instance, you can hack away at Alex’s plugin directly – the same basic concepts I outlined before would still apply.