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+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+API Utils provides a basic CommonJS infrastructure for
+developing traditional XULRunner add-ons and applications. It is
+the basis for the Add-on SDK.
+
+To address issues present in traditional add-on development,
+API Utils provides mechanisms for:
+
+* writing and executing test cases, inspired by Python's [nose][]
+  package,
+* tracking JS objects of interest to aid in memory profiling and leak
+  detection,
+* registering callbacks that perform cleanup tasks when modules are
+  unloaded,
+* easily reporting errors with full stack tracebacks.
+
+API Utils also has the following characteristics:
+
+* Beautiful, concise documentation.
+* A rigorous test suite ensuring that the library doesn't break as the
+  Mozilla platform evolves.
+* Solid developer ergonomics ensuring that developers can easily find
+  out why something they're doing isn't working.
+
+API Utils is intended to be very small and only contain the bare
+minimum of functionality that all add-ons need.
+
+Note that the API Utils package has not fully stabilized yet, meaning that
+we do still expect to make incompatible changes to its APIs in future releases
+of the SDK.
+
+  [nose]: http://code.google.com/p/python-nose/