Invision Board 1.1a has just been released.
And I have heard that they are working on v1.1.1 which will be due later this month.
Invision Board 1.1a has added the following features:
A live chat room (you can specify if users can access to it in the Admin CP)
Edit: Invision Board 1.1a is if you have purchased Invision Power Chat which I know you havent, so you can wait until 1.1.1. I am sorry that I posted this, just lock it or delete it.