Super Trackstick <http://www.trackstick.com/super_trackstick.htm> looks like a cool tool for people who want to record their ski trips. Or for potential Jack Bauers . I don’t know what effect it might have on beacons, it is a subject I revisited recently:-
The issue only affects the Searcher’s beacon not the victim’s.
From my tests it seems that single antenna digital output beacons suffer most from interference. We’ve found that mobile phones (passive not calling or contact a cell), LED headlamps and even Suunto watches can have an affect. However these types of beacons (Ortovox M2, ARVA 9000) are increasingly rare. Two and three antenna beacons are much better at screening out interference - I don’t know if this is down to more modern circuits or software or due to the number of antennas.
So I would say having a Super Trackstick on you when skiing would not pose any risk.