Yahoo! Research has released ZoneTag, an application currently for Nokia Series 60 mobiles, which I wrote about last week at Smartspace, my blog about annotated environments. ZoneTag allows users with a Flickr account to easily upload images taken from a cameraphone and have those images not just tagged with Flickr tags, but also appended with geotagging data generated by the user's location when sending. ZoneTag currently works with Cingular and T-Mobile US networks and requires a data plan for either carrier. I have used it for several days and find it a smooth way to upload images quickly, and with some help from ZoneTag's creators kindly commenting on Smartspace, I was able to convert some of the tag data to zip code information, so ZoneTag remembers if I am in a particular cell to append matching zip code info to it.