diff --git a/TODO.txt b/TODO.txt
new file mode 100644
index 0000000..6777221
--- /dev/null
+++ b/TODO.txt
@@ -0,0 +1,12 @@
+Make the panning match the cursor
+Allow zooming with scroll wheel
+Dynamically set a minimum zoom that will keep the edges of the sphere from showing
+Automatically create canvas for each marked <img> once it loads, and display:none the <img>
+Add a class to the <canvas> for styling
+Copy matrix funcs into code
+Add licenses
+Add instructions
+Fix up code locality
+Give the uniforms simpler names
+Delete the defunct view matrix
+Rename the model matrix as the view matrix, because that's really what it is.
diff --git a/panorama-viewer.js b/panorama-viewer.js
index 96839dd..7212843 100644
--- a/panorama-viewer.js
+++ b/panorama-viewer.js
@@ -212,7 +212,6 @@
 		gl.uniformMatrix4fv(modelMatrixLocation, false, modelMatrix);
 
 		const aspect = gl.drawingBufferWidth / gl.drawingBufferHeight;
-		// TODO find a minimum zoom that won't show the edges of the sphere.
 		const zoom = 4;
 		const projectionMatrix = mat4.ortho(mat4.create(), -aspect / zoom, aspect / zoom, -1 / zoom, 1 / zoom, -1, 1);
 		gl.uniformMatrix4fv(projectionMatrixLocation, false, projectionMatrix);