ZendCon is not limited to just PHP-related talks, we're also looking for sessions covering a wide range of topics surrounding open source and app development, plus talks on the people and processes that make it happen. We encourage you to "think outside the box" to come up with your own unique topics.
Due to financial constraints most conferences tend to pick speakers to present multiple talks. Therefore it is advisable to submit a few talk ideas, not just one. By submitting a single talk you may lessen your chances of being selected.
To get the ideas flowing, here's a few suggestions:
Not sure if your talk is good enough? Here is a place you can ask someone to review it. Click for HelpMeAbstract
NOTE: We make no guarantee of acceptance, but it may help you improve.