I think that the scenario planning approach is a valid and useful one. The idea of preparing for a number of possible futures is a particularly relevant one for me, as I have seen strategic decisions that have been based on current and likely trends to make significant purchases for school ICT resources that have turned out to be shortsighted; an example being substantial funding going towards netbooks shortly before the widely rumoured introduction of tablets, particularly the iPad. This highlights to me how scenario planning in digital technologies is such a relevant process; change is happening so quickly; clearly strategies need to be in place to cater for this rapid change of pace in our world
I do see a potential disadvantage of scenario planning being stretching resources to focus on a range of outcomes, as opposed to focusing on lesser, and quite likely, areas of needs.
In my own context of social media, I am aware of emerging tools, such as Google Plus and Pinterest, that could potentially be more useful in a school environment that the two I am focusing on (Facebook and Twitter). Scenario Planning offers an avenue for for preparing for the possible implementation of the likes of Google Plus, possibly through the use of professional development on the resource to ensure that if the need arises, staff have the skills, knowledge and ability to implement the new system.
For my own needs, I will be looking towards the processes that are used to identify possible futures in the scenario planning process. I often go into situations with predetermined ideas (netbooks!) that I find hard to waver from. I need to be able to put my own thoughts. ideas and opinions aside to look towards more than the one scenario.