I do not recall which article led me to the Mobile Devices + Twitter Use from Gnip and MapBox, but this was interesting enough that I bookmarked it and took screenshots of both local and global distribution of mobile tweets by device type.
There is a good bit of work out there by people trying to characterize social disorder and natural disasters using tweet content and meta-data. I think this is good for developed countries, but in a place like Mali or Somalia? A thirty foot pole with a ladder that doesn’t start until the ten foot mark to discourage casual climbers, and then at the top a solar array, a hardened enclosure with milspec electronics to provide basic services. This is the path for remote areas, with backhaul in the form of a satellite phone connection.
The only surprise here is the utter lack of mobile Blackberry tweets on Capitol Hill, given the standardization on this platform among Congressional staff.. It’s also interesting to see the distribution of Apple vs. Android within D.C. itself. The area that is biased towards the less expensive Android is the famously gritty Southeast. The areas that are more red correspond to universities and other places where residents are more affluent.