This is a fun app, assuming you arent uptight about surveillance satellites. In fact, it seems that a lot of the satellites are for non-military use, like weather or geology inspection, or things like Google Earth etc. I used to sit on my front steps, in Denver, at night and, around 9pm, see several satellites cruising silently overhead. Now I can know ahead of time and I expect to see even brighter objects over the dark Atlantic Ocean.
BongoBern about SpyMeSat