Today I created a splash screen (above) for the app and the mechanism to display it. The picture will change when I have time to render something more appropriate.
Also new today is 'FreeDrop' mode where modules can be placed anywhere on the virtual rack - even on top of eachother. This makes rearranging a full rack possible (and is the default mode on the other two commonly used rack planners). In this mode the 'DropZone' box is white rather than red or green (see image below), indicating that the module can be dropped wherever you want. Anywhere where two or more modules overlap is highlighted in orange so that these mistakes can be easily seen and fixed.
Oh and I fixed a bug that reported the available HP incorrectly (see yesterday's second screenshot).