Yep, at our school we're actually not allowed to test in the way that testing is done on SpellingCity. I used the testing here this year and go away with it, because as far as the 'Watchmen' know it's just some newfangled online technology.
I'm not sure I'll be able to do it again next year. They're expecting us to follow the National Testing procedure, so... it seems like i will have to design a new multiple choice test semi-regularly. They don't want us to do it every week; they would like to see us rotate through about 4 different assessment methods.