Tweet-Mapping Arrives, Along with the Twitter's Battle Against Google

Twitter's geotagging powers could transform the lifecasting service into something extremely powerful. And the company's just taken the first steps to making this happen through its own Web page: It's turned on Tweet mapping. 

Twitter's geolocation code has been enabled since late 2009, ready for third part developers to build the right hooks into their smartphone app code that grab the user's location from AGPS tech and whizz it off to Twitter HQ. But that's about all that happened for a...