Read about MPI in the Spring/Summer 2015 edition of Peacebuilder.
This is a special issue of Peacebuilder, focusing on various peacebuilding institutes whose roots include the Summer Peacebuilding Institute of Eastern Mennonite University, including MPI. Bonnie Price Lofton, the author and editor-in-chief for Peacebuilder came to the Philippines to visit MPI and some of the individuals and organizations that also benefitted from MPI's Annual Peacebuilding Training. The article about MPI begins on page 38 of the magzine (page 40 in this online version).
In addition, there is a short piece about Babu Ayindo and whether he thinks SPI is still needed (page 7 of artilce/page 9 online).