Looks like we have a fair bit of good news!
UA just tweeted:
@techgirltx Sorry, have 2 comply w/ TSA directive. Only impacted seven or so int'l flights. Have since found a fix to keep IFE w/out GPS.
http://twitter.com/UnitedAirlines/status/7098305109
So it looks like IFE is back on but Airshow will remain off - not much you can do about Airshow - that's in DHS and TSA's hands. But at least flights should still have IFE...