I have an command line alias called screencast that starts this applescript on on my mac.

tell application "QuickTime Player" --activate new screen recording start document 1 delay 600 stop document 1 quit end tell

I then save it to a cloud service provider and set the privacy settings to whatever I want.

Are there any advantages to using this service versus the workflow that I mentioned above?

There are additional features and also the online side is different, it's also open source so will only get better and more featured

Cool, so the difference with this and Jing project is that it has the video on the bottom right as well as the video of the screen?

Definitely 3 minutes is a bit short for some applications

We don't watermark or use flash and you can resize customise or remove the webcam video

The recorded video just shows up as a green screen for me on a MBP Retina, OSX 10.8

Hi this is a known bug that affects many apps on the Mac - we have written about it in the FAQ's on the site and also in the GitHub repo.

If you re-boot your machine that generally sorts it out, we think it is caused by machines with dual GFX cards and dynamic switching.

Love it. Is there any way the recording time could be longer than 3m?

Possibly - it's open source so you can always suggest via the GitHub repository https://github.com/petetak/QuickCast/issues

This is awesome - any plans to charge for it?

It's free and open source

are their any plan to make this app available to other O.S. ?

Possibly if enough demand, but it's also open source so if people want to get involved and build for additional OS that would be cool :)

nice but for professional use i'd go with screenflow.

It's fully open source and will only get better :)