We’re spoiled here in the US. When we want to browse what’s trending on Twitter, we just break out our smartphones, launch an app and we’re perusing the latest tweets about Joan Didion and the war on Christmas in no time. Those in developing nations don’t have that luxury. Twitter knows it needs to crack those markets to stay relevant and competitive, so it’s reaching back to its text-based roots in a partnership with Singapore-based U2opia Mobile.