This white paper could be of use if you are interested a) in the different ways in which broadband multimedia may reach a number of different mobile environments and / or b) the different business models that might support the provision of mobile data.

http://www.broadcastpapers.com/data/FantasticMobile01.htm

NB you will find this white paper in the white papers database as well: go to http://www.e-consultancy.com/knowledge/whitepapers/search.asp and search on 'wireless broadband'