We expected to be snowed under with calls yesterday and today, as we started the semester with two LMS systems running. It would have been nice to be able to say "All Semester Two courses are now on Learn (our name for Moodle)" and that only whole-year courses were left on Blackboard, but human nature has meant that lots of courses are still using the old system. (Well, 2007 actually.) They can't avoid the inevitable switch-off, though - our licence expires on New Years Eve.
Anyway, we haven't been too bombarded; it's been busy, but it's not mad, and the start of a semester is always busy for the first week at least. Once all classes have met once, the majority of problems have been dealt with, so life gets easier. The big problem is that students are not being told by lecturers which system they should use to find their online course material, but they'll learn (excuse the pun) pretty quickly.