Allow removal of questions from the queue for the official Twitter feed before it gets tweeted.
Many times, weird and/or crappy questions get tweeted. These do not reflect well for the site, especially sites that are still expanding. Twitter has the ability to attract experts through retweets by users, and such content makes it less likely for them to become interested and join the community.
If Facebook and Google+ pages are created then this will be even more important.
My suggestion is that to show about 3-4 posts for review by moderators before being tweeted. These would be posts that are selected by the Twitter bot (since we dont want to circumvent it and make it angry).
Each post could show up as an independent flag or the whole bunch could show up as a notification.