The 2011 Informix conference website has an update on the Sunday
tutorials at http://www.iiug.org/conf/2011/iiug/tutorials.php

Register soon, the pre-conference tutorials will fill up fast. We have
12 this year, so the rooms will be smaller. If you have already
registered, you can log back in and make your selection.
http://www.iiug.org/conf/2011/iiug/register.php

Thanks
KS