OK - if anyone wants to play - I have set up a twitter feed for f3xevents. Simply get yourself a twitter account and look for f3xevents and "follow" it.
I have some test tweets out there now and will post some more as tests.
If you get signed up and want me to send a twitter so you can see it - let me know via email: firstname.lastname@example.org
Have fun - if this works and people want it I'll implement it for F3J in the Desert...