On Sat, Feb 18, 2012 at 9:13 PM, Danny Iland <<a href="mailto:iland@cs.ucsb.edu">iland@cs.ucsb.edu</a>> wrote: <div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello, I am a graduate student at University of California, Santa Barbara, developing an emergency communication activity for OLPC. The core idea is that when XOs come into Wi-Fi range of each other, they pass text-based messages back and forth, with the hope that eventually one XO will gain internet access, and upload all messages on the device to an Ushahidi crisis map. We are attempting to implement this using a shared Activity. However, for this to be feasible, we need a way for our Activity to look for instances of the Activity being shared by XOs nearby, and to automatically join the activity. We don't want the user to have to be in the Neighborhood view to find other users, or to take any action to connect to nearby XOs. Any advice with regards to this is greatly appreciated. So if we are using an XO with our activity open, sharing enabled, and we come into Wi-Fi range of another XO with our activity open, the two activities should automatically share data. How can we accomplish this? We think a solution may exist using Telepathy and Buddies, but we are very unsure of exactly how to do it. Thank you, Danny Iland <a href="mailto:iland@cs.ucsb.edu">iland@cs.ucsb.edu</a> </blockquote></div> Not a direct answer, but this project, <a href="http://teotwawki.steubentech.com/doku.php/">http://teotwawki.steubentech.com/doku.php/</a> has similar passive propogation goals and was working with XO-1 laptops. 牋牋 --Fred