Just to get started.. you can use filebrowser.py script to execute your own python scripts (browse and select a python script file and press the navigation key to execute it). This way you don’t need to copy scripts to default location (<drive>:\System\Apps\Python) to be able to execute them. You can also make own python script for copying other python scripts to default location and then execute it using filebrowser.py when you want to copy stuff. At least this way you don’t need to purchase and install file manager application to your phone just to be able to execute python scripts.
BR, Sami :)