At Tera-Byte, several of my colleagues telecommute. In order to stay in constant communication with each other, we all use good ol’ IRC. In order to be readily available and allow quick roaming from one location to an other, I use Irssi‘s proxy module which runs continuously within a screen session on my co-located server.
On my Desktops and iPhone I run Colloquy which connects to my Irssi proxy. Although push capabilities are planned for Colloquy, it’s not ready yet. Prowl appeared to be the perfect band-aid for the situation.