I found this new preplanning app a few weeks ago, and just had to let people know about it. It is the first one that I have come across that is actually functional and easy to use. The other ones out there I have seen are either overly complex, or not functional, or both. It is a map based application that allows you to do preplanning by dragging and dropping icons and image files right onto the map layer. If your preplanning process is not working, you should check this out. you can download and test it for free. Here is the website of the company that created it.