How many iPhones/Androids are on the water in waterproof cases, brought it out for safety. Does the RC check apps like those listed below?
http://gps.motionx.com/live/activities/sail/http://itunes.apple.com/us/app/sailoraid/id456531378?mt=8&ign-mpt=uo%3D4
http://itunes.apple.com/us/app/marine-instrument-display/id457903555https://play.google.com/store/apps/details?id=rs.pstech.sailing.beta...and about 30 others....
heck, there are entire bulletin boards dedicated to the topic...
http://www.macsailing.net/fbb/showforum.php?fid/5/...in other words, phones are illegal...
BTW, at North Americans, every boat had a GPS tracking unit in it. According to the rule, every participant should be disqualified.
The rule is dumb, only serving to disqualify those who want an inexpensive compass built for sailing, or boost TackTick sales figures.