[medwezys]

Screenhero is nice for remote pair programming, remote tmux/pssh sessions as well when both devs use vim/emacs, also: https://github.com/portly/pssh.

Campfire for chats, dumbot as a minimalistic task manager in campfire https://github.com/tadast/dumbot#tasks

Github issues for technical/code problems.

Google hangouts for standups