Develop a mapnik geowave datasource plugin:

• This will enable mapnik to render tiles directly from a geowave datastore. [1][2]
• Mapnik is behind most of the OSM infrastructure - enabling this brings in lots of great features
• Initial target would be 3.x unless something comes up[3]

Decision point on RPC (thrift, etc.) vs. in-process (Jace[4] probably)
See #14 - same technique here applies there

ref:
[1] https://github.com/mapnik/mapnik/wiki/PluginArchitecture
[2] https://github.com/mapnik/mapnik/wiki/DevelopingPlugins
[3] https://github.com/mapnik/mapnik/issues?milestone=15&state=open
[4] https://code.google.com/p/jace/wiki/Overview