No, no good updates at all, unfortunately. We started work on the Twitter extension back in August. However, the upcoming release of JFBConnect has taken a lot more work to implement than we anticipated. After that, we are planning to 'quickly' release new versions of JFBConnect and JLinked that will both support Joomla 3.0.
So, we're still planning to be working on the Twitter extension more later this year, but it won't be ready, at the earliest, until early next year. We'll have more updates after the 'release spree' that we're currently planning ends.. but can't really give more info until then.
We're excited to get a Twitter extension out as well, but need to make sure we can keep up our level of quality and support for all of our extensions. We're actually bringing on another developer right now to ensure our growth will go smoothly, but doesn't make things ready right now..
Hope that helps explain, even though the answer isn't as optimistic as we'd like right now.
Thanks,
Alex