On Saturday 4 August, London's new Iraqi Cultural Centre will be hosting Iraq Day 2012: a free, eight-hour celebration of Iraqi food, music, fashion and culture on Riverside Walk on the South Bank of the Thames, right by the National Theatre. The National's website has really useful travel information.
Events begin at midday and wind down at about 8pm. It's all free (though I assume that they'll charge for food), so do drop in if you happen to be in London—or come and make a day of it if you can face the Olympic hordes. Don't be put off by the reference to "the Games" on the poster: I don't think there's any organised sport involved! More details will be posted on the Iraq Day 2012 website in due course.
The organisers are still looking for volunteers, so do email them if you'd like to help out, even if you can only offer a hour or so of your time. See you there, I hope!