Original Trayfreq (http://trayfreq.sourceforge.net/):
Devin Smittle <pandagoat@gmail.com>
Shae Smittle <starfall87@gmail.com>

Trayfreq for Archlinux w/kernel >= 3.0.4:
David Phillips <dbphillipsnz_funny swirly a symbol_gmail--d o t--com>