We have received FAA approval for iPads in the cockpit under Part 135 (they have always been legal in the cockpit for Part 91 aircraft owners).
The iPad increases situational awareness and reduces pilot workload.. both of which increase safety. They are 100x better than any PC product on the...
Do a google seach for "STMP slots" and look around. You will find several companies out there that have web based programs that will let you compete against the armies of dispatchers for slots into STMP events.
Good Luck
There are several places on the web that use computer based systems that allow you to compete with the rooms full of dispatchers for STMP slots (no help at LGA, JFK, or DCA). Do a google search for "STMP slots" and you will find what you are looking for.
General Aviation airports are not closed...