>If you have a Twitter for a vertical market application, what do you suggest to twit about? Obviously I don't want to twit about "found another bug" :)
>TIA for any suggestions.

I don't know much about Twitter - how big is the message limit, anyway?

You could include updates about any of the following:

Bugs found and corrected

Workarounds

Tips and tricks

Case studies

Off-topic, e.g. an occasional joke

Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)