Just started using Event-o-Matic and have a few thoughts for improvements.
1. Email Field
Entering a new event requires one page to enter your email address and then a second page to enter the event information. Why not have everything on one page?
2. Event URL
The field requires a "valid URL" but there is no cue to inform you what constitutes a valid URL. Suggest pre-populating the field with an example (e.g. "http://www.myevent.com") which then disappears when you start to enter the URL.
There is no option to say "see website" or "varies" or to add a range of prices. OK it might be obvious from the text description but if there was an "other" checkbox option and a free text field you could then enter the range or a message.
There is no option to be able to use tags or categories of events from a list - it would make searching for events much easier if you are looking for a specific type.
5. CSS Styling
It would be great to have some control over the look of the form in the Settings.
6. Event duration limit
There is an arbitrary event duration limit of 5 days - why?
I am sure your local city has events which last more than 5 days.
I have modified the code in date.php to increase it to 14 days.
7. Custom Exit Page
It would be good to be able to specify the exit page on submission of an event.
8. It would also be good to ask the user to submit another event and then either create a new event or duplicate an existing event (for a series).
9. Repeat events (first Monday in Month, 7th of Month etc) would also be helpful - see Google Calendar event entry for example.
10. Google Calendar link so that dates can be added to your own calendar as as feed