Here are some random comments:
- His approach simplifies layout.
- There are multiple ways to do layout.
- Use sizers!
- This project lets you load widgets from an XML document.
- There are many ways to generate the XRC document.
- The XRCed program comes by default with wxPython, and it's quite nice.
- It doesn't work with wx.Grid or custom widgets.
Comments
A minor correction to your last point: XRC doesn't yet have a wx.Grid handler, but you can easily work with wx.Grid and other unsupported classes simply by using an "Unknown" widget and calling "AttachUnknownWidget" in your code. Nearly painless.