Had training this week on LAN School. Seems like a useful tool - I've already used it just to check on student progress in class (without the student's knowledge). This may seem a bit sneaky, but actually it enabled me to observe where the individual students were struggling, and then offer directed help without them actually having to ask - I suppose it's a way of giving support without the student having to alert the rest of the class to the fact they are struggling.
I'm not sure how useful it will be in a mixed workshop setting - interrupting adults when the are all working on different things may be more detrimental than beneficial.
I did use it a little in my web design class though, and can see that if students produce a good example it will be great to show to the rest of the class, or to get students to demonstrate a skill to the others.
Another thing that I found particularly interesting was the tutor himself who delivered the LAN session. He is so clearly in tune with Estyn requirements, that he managed to weave Welsh / ESDGC / H&S etc etc into the session with apparent ease, and he directed us to where we might also be able to do this.