Handheld Learning - learning with mobile and ubiquitous technologies

Does anyone have knowledge or experience or knowledge of teacher training of any sort using mobile technology, focussing on the delivery of pedagogy rather than use of mobile technology for classroom management?

I know of some work in Kenya by John Traxler and reflective work done in Finland.

What are members thoughts on the use of mobile technology for teacher training. There is plenty of practice and debate about the use of mobile devices in the classroom but what about in the teacher training establishments?

Jonathan