Eidete is a new app for screencasting from the elementary team. Here is its launchpad page. The project is still in alpha but i was able to test run it thanks to a daily build ppa maintained by dear Mr. Davidoff.
- encoding to webm
- selection of the area to be recorded
- display of the pressed keys
- audio recording
To install Eidete you need to be on ubuntu precise or oneiric.
sudo add-apt-repository ppa:shnatsel/eidete-daily
sudo apt-get update
sudo apt-get install eidete