I'm currently developing and testing a Live Twitter tool for modul8, which will display twitter messages in your VJ set.
It works by importing a SWF file into Modul8, and then opening another SWF outside of Modul8. This second SWF shows the search interface for twitter, and sends twitter results to the SWF that you have inside Modul8.
It's still a beta test, some people have problems getting the security settings right, but it does actually work and I have used it in live VJ sets already.
Check it out at http://blog.eerkmans.nl/?p=116