Imagine E-Mails that can change their content! Unbelievable all the possibilites that come with that.
I have the script of the seminar, you can download it here and make your own opinion about it. It containts many examples of the usage of dynamic email content: http://spamlinkprotector.com/dmexco.pdf
I hope for an active discussion on this.
The speaker told also about an possibility for online shops, where status of orders changes dynamically, but I personally think that it makes no sense. Other uses as the work with countdowns and so it is really really great!