GEPON is coming up fast. very fast. It is the ethernet based solution to Passive Optical networks. ANd because it is ethernet based, it can be integrated very easily.
SFP modules are widely available for $100 or so. CPEs (or ONUs) are also widely available from $30 onwards.
But current OLTs are way to expensive and most have bad/lacking interfaces.
Please consider supporting 802.3ah-2004 GEPON tech in future RouterBoards.
This would be a great news in the GEPON provider community if we had RouterBoards capable of supporting OLT SFP modules.