Supersonic: lightweight Subsonic music server
A subsonic server featuring small memory footprint, ideal for embedded devices.
WhatsApp on your computer: Pidgin plugin
Libpurple plugin so one can chat over WhatsApp comfortably on a computer
WhatsApp alternative android client
A Xabber fork that includes WhatsApp as a usable protocol
WhatsApp dissector plugin for Wireshark
A plugin for Wireshark to dissect WhatsApp protocol