Session Voting for MBS Xojo Conference

We have a speaker who offered several topics for a presentation:

Creating reports with XojoScript and MBS XL Plugin
Database independant programming: using interface
Screen designer: how to create an application specific IDE
Creating and communicating with a web service using JSON
Integrating SIX payment systems saferpay credit card terminal with a web app
Creating PDF file with XojoScript and MBS DynaPDF Plugin

Please vote for them in this doodle survey.
Once we know your preferences, we can pick a topic.

Speakers are still welcome as we still have free sessions. The biggest plugin in space...