Seamless integration... The only missing part would be the front-end creation of event, but apparently this is for next release... I can't wait!
Yes, submit an event in front-end is planned for release 1.3 (with registration, newsletter, and other features : http://www.joomlic.com/en/forum/icagenda-announcements/127-next-major-release-in-developpement-1-3
Thanks for your patience ! :-)