The result of this work is now located on the Twitter Sentiment page. The graphs there provide a count of the public tweets about $VXX and $UVXY based on whether they have a positive or negative sentiment associated with them.
Here is a screenshot:
With the downward bias of VXX I would normally expect sentiment on the this to be negative. But since VXX is experiencing a rare moment in the green today I suppose it makes sense that Twitter sentiment is positive.
While I was initially polling for tweets every minute I have scaled back to hourly intervals. I'll continue to keep an eye on this to gauge its usefulness.