How are you doing audience analysis specific to devices users are carrying while coming to work ? In context to creating a solid case for m-learning within the organization.

One thing that's not too difficult to do in order to get some good metrics on this is simply to set up a web page somewhere and hook it up to Google Analytics, then send the link to everyone in your target audience asking them to look at the page.  Might be good to actually put some useful information on that page as a reason to go there.

The great thing about Google's Analytics reports are that they can give you a host of data about everyone hitting your page including which browser, browser version, monitor screen resolution, OS, and device being used.  Plus it's usually free.  Trying to get anywhere near this same level of information from your IT department could be a lot harder.