diff --git a/examples/cities/js/example.js b/examples/cities/js/example.js
index f5d83e88..3c045b04 100644
--- a/examples/cities/js/example.js
+++ b/examples/cities/js/example.js
@@ -87,6 +87,18 @@ Ox.load({UI: {showScreen: true}, Geo: {}}, function() {
             };
             /**/
         });
+        /*
+        Ox.print(
+            JSON.stringify(
+                cities.sort(function(a, b) {
+                    return a.country + ', ' + a.name < b.country + ', ' + b.name ? -1
+                    : a.country + ', ' + a.name > b.country + ', ' + b.name ? 1 : 0
+                }).map(function(city) {
+                    return city.name + ', ' + city.country
+                })
+            )
+        );
+        */
 
         var listAPI = Ox.api(cities, {
                 cache: true,
diff --git a/source/Ox.UI/png/icon128.png b/source/Ox.UI/png/icon128.png
deleted file mode 100644
index e4f8c307..00000000
Binary files a/source/Ox.UI/png/icon128.png and /dev/null differ
diff --git a/source/Ox/js/Array.js b/source/Ox/js/Array.js
index 3f9b93d7..28c161ad 100644
--- a/source/Ox/js/Array.js
+++ b/source/Ox/js/Array.js
@@ -356,6 +356,10 @@ Ox.flatten = function(arr) {
     return ret;
 };
 
+Ox.indexOf = function(arr) {
+    // indexOf for primitives, test for function, deep equal for others
+};
+
 /*@ 
 Ox.merge <f> Merges an array with one or more other arrays
     For convenience, literals are treated as arrays with one element
@@ -364,6 +368,7 @@ Ox.merge <f> Merges an array with one or more other arrays
     > Ox.merge(1, [2, 3, 2], 1)
     [1, 2, 3, 2, 1]
 @*/
+// FIXME: a1.push.apply(a1, a2) should be much faster
 Ox.merge = function(arr) {
     arr = Ox.toArray(arr);
     Ox.forEach(Array.prototype.slice.call(arguments, 1), function(arg) {