I use apps on my phone currently. The ones that I use in my personal life are on my phone. I know that pretty soon our classrooms will have at least 5 ITouches or Ipads. I think that it will be great to set up workstations for students. I can specifically see students using the Itouches for math workstations. Of the few apps I looked at, there were some for practicing Math Facts, logic games, and puzzle games.
They can also use it as a research tool because there is Wikipedia app as well.