I think it'd be cool if we had a "no tail" option for speech balloons, as opposed to "thought" and "speech". This could be used for disembodied voices, additional narration, or simply "floating" speech. I got the idea from a recent comic I did that takes place in a chat room:
[Click to view comic: 'Scenes From A Furry Chat Room']
My perfect vision for this comic would have the speech balloons with no tails, since the characters are actually "typing" instead of "talking".
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"He was cursed with a horrorshow of a face, like Guiseppe Archbold doing a study of mollusk tumors."