By Matt Cardwell

One of the things that consistently amazes me is how necessity nearly always drives some enterprising person into invention...especially when you can charge for that invention.

Phone booths may be on their way to obsolescence thanks to the growing ubiquity of cell phones, but in Uganda (where landlines are scarce and electricity spotty), budding street entrepreneurs have created cell phone charging booths to deal with the unpredictability of the country's telecom and electricity infrastructure. 

Check out the full post here: http://www.kk.org/streetuse/archives/2007/01/phone_charging_booths_in_ugand.php

Thanks to Dan Izzo over at the BizZoBlog from bring this example of the DIFF to our attention.