WhatsAPP uses FreeBSD
What kind of operating system does one need for 1 million concurrent TCP/IP sessions? FreeBSD is one of the choices. WhatsApp uses FreeBSD in combination with Erlang to achieve this: One Million.
WhatsApp Messenger is a cross-platform mobile messenger that replaces SMS and works through the existing internet data plan of your device. WhatsApp is available for iPhone, BlackBerry, Android and Nokia Symbian60 phones. Because WhatsApp Messenger uses the same internet data plan that you use for email and web browsing, there is no cost to message and stay in touch with your friends.
A new kind of Cache
It’s called Bullet Cache, created by Ivan Voras.
“Think of Bullet Cache as “Memcached, only better” :) It offers some unique data query options and is blazingly fast!”
KDE SC 4.7.2 is available in ports.