At work, we DLed the demo of E2 Beta 1, and have been toying around with it.
I installed Clarisworks 4 (demo) on E2b1. It worked almost flawlessly, the only thing that didn't appear to work are the color pallete flyouts to change the text color, and obviosly communications. Being that it was the 10 minute time limited demo version, I was unable to give it a real rigorous test of just how many manipulations could be done to a document. I was basically able to try the main features, and some of the lessor ones.
I could not try saving because the CWorks was a demo version that didn't allow saving.
I also tried Claris Draw a little. That also appeared to work, but no where near the testing on CWorks 4.