I'm about to leave Davao in a few hours. This trip is day job fieldwork. I had very limited opportunity to do some OSMing but I am very happy sharing the OSM love.
First up, is a local caving community (Speleo Davao ). I showed them what we can do with OSM and a couple of their members showed keen interest. I left one of our gpstogo units to the group so that they can start mapping their own cities .
Second is a short OSM workshop with the students of long time Davao mapper murlwe . Thanks to Yahoo!, Bing and P2, the workshop took little effort to explain and demonstrate. A couple of students are starting to add data in their own towns. 
The task of creating the best map of the Philippines is enormous and I find personal comfort that more local mappers are sharing the load (and fun).