TagandScan is a service for your mobile phone that enables you to mark real physical locations with an electronic tag.
Tags automatically contain the time and location where and when the tag was made. They also can contain a title, description, and a photo.
Each tag is saved in one of many private or public grids. Grids help organize tags and control who can detect them. You can create as many private grids as you want.
You can scan for tags by proximity and keyword and can display them on a map.
I find TagAndScan pretty exciting for one reason: it's a commercial service on the phone. There are other applications that do stuff like this - it's not a mindblowingly new concept in this geo-everything moment - but it's nice to see the "let's leave virtual location-tagged notes" concept in a usable form that doesn't require technical oomph and a PDA. Not that there's anything wrong with technical oomph and a PDA, but I'm interested in how - and whether - non-techies approach this application.
Like my other big favorite, Shazam, it's only available in the UK.
Plus, I have this small-medium-large theory about people and their personal devices. Anyone addicted to the permanet has to carry around either one small and one large device (ie, a phone and a laptop) or one medium device (ie, a PDA or palmtop). Me, I am a small-large person. There are incredible PDA projects -- but I'm kind of prejudiced towards applications for devices I actually use.
Via telecom-cities mailing list and, any time now, numerous blogs.