Describe both latest and legacy efforts.

readme.markdown

@@ -1,12 +1,21 @@
-Original Aiko repository
-========================
+Aiko repositories (2015 - onwards)
+==================================
+
+Completely new cross-platform abstraction layer with a built-in Lisp
+scripting engine.  Supports Unix desktop, Arduino and ESP8266.
+
+- [Aiko Engine](https://github.com/geekscape/aiko_engine)
+- [LIFX C protocol](https://github.com/geekscape/lifx_c)
+
+Original Aiko repository (2009 - 2011)
+======================================
 
 This project is part of the
 [Aiko Platform](https://sites.google.com/site/aikoplatform)
 
 This repository used to contain multiple projects ...
 
-- [Aiko Arduino library](https://github.com/geekscape/aiko_arduino)
+- [Aiko Arduino library](https://github.com/geekscape/aiko_arduino_legacy)
 - [Aiko Pebble](https://github.com/geekscape/aiko_pebble) Arduino sketch
 - [Aiko Gateway](https://github.com/geekscape/aiko_gateway) for OpenWRT router