Nicolas (From Pasta and Vinegar) explains a nice point of different results of location awareness through mobile apps. It turns out that sometimes getting the location of your colleague automatically doesn’t help to communicate,and having lack of availability of this information push you to communicate more with him/her. I think this is a really good point in an era where we think if something is done in technological terms then it is a good thing. Still as far as the technology goes there is this website navizon and they offer a location based system where users periodically update their surrounding wi-fi locations and make it shared so that users without can benefit from that. (P2P wireless positioning.) It is a good approach, as it will allow us to point ourselves without the help of GPS in the long run.