They are exactly the same. The PicoStorm simply comes pre-programmed with the storm audio on the SD card and can easily be changed.
Yes, as long as no more than 10amps of lights are connected to each outlet on the PicoStorm.
Yes, the PicoStorm contains one stereo 3.5mm female audio port. This is the same exact size used on computer speakers, iPad, iPhone, etc. So any speakers and audio accessories for those will also work on the PicoStorm.
It depends on how big your front yard is. They are basically large computer speakers.
This product may be used outdoors but must be protected from the elements.