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I found that reviewing a new CMS helped me define exactly what I need in a course management system. Eudstruct isn't there yet, but they are very open to critical comments that will help them improve the product.
If you've never done a beta test, be prepared to react to an environment in a 'growth phase'. I suggest you approach this test with an open mind. Create a list of features you want. Explore the Course and Discussion elements. Let Mark know what it would take to temp you into investing the time and effort needed to create and teach online classes using this CMS. My guess? Everyone will learn something by going through the process.