Mike Harsh  has updated his WPF/E Pad. The new version has the following changes:
- Enhanced readability by lightening the background color of the XAML textarea
- Modifed the loading logic to download one XAML file at a time. I've also added a status area in the XAML files pane to show what file is currently loading
- Added a splitter for XAML and Scene panes. Just drag the XAML pane titlebar up or down to resize
- Added scroll wheel support for zooming
I put a modified version online at http://frankfurt.schwarz-interactive.de/  with a additional changes that allows you to save the files. See the save bottom in the lower right corner.
There are still some bugs inside like when you change the size of the XAML pane, but this should be fixed in the next days.
The original source code of the WPF/E Pad can be found here .