Just a suggestion.
Data Highlighter from Google:
"Does your site contain event listings?
Now there’s a new alternative to webmaster markup for helping Google understand your site’s event data. With Data Highlighter, you simply "tag" each data field with your mouse.
Then Google can present your data more attractively, and in new ways, in search results."
To help my listings be compatible with this I used Custom Press to add three further fields the Events archive page: Artist, Venue and Time.
The above fields I place in a span tag on the incsub archive template within specific span tags for easy automatic recognition by the Data Highlighter system.
I set up a separate start time from the one included in the Events+ plugin, as leaving it in changed the way the date was tagged (actually left date without a tag).
The page I set it up for is here: http://nicolemaguire.ie/events/
Might be an idea to include this in future upgrades?