new python submodule. eg.

from bpy.app import binary_path, version, version_string, home

can add constant variables from blender here as needed (maybe functions too... bpy.app.memory_usage() ?)

release/scripts/ui/space_info.py

@@ -121,7 +121,7 @@ class INFO_MT_file_open_recent(bpy.types.Menu):
         import os
         layout = self.layout
         layout.operator_context = 'EXEC_AREA'
-        file = open(os.path.join(bpy.home, ".Blog"), "rU")
+        file = open(os.path.join(bpy.app.home, ".Blog"), "rU")
         for line in file:
             line = line.rstrip()
             layout.operator("wm.open_mainfile", text=line, icon='FILE_BLEND').path = line