The Kickstarter page for Shadowrun Returns has word that beta keys for Shadowrun: Dragonfall are heading out to those who bought the Shadowrun Returns Collector's Edition through the Harebrained Schemes website. Here's word, which includes an update on the DRM-free version :

We are excited to let you know that we have begun emailing Shadowrun: Dragonfall keys to all Backers and anyone who ordered the Shadowrun Returns Collector’s Edition from the HBS website. You can add the game to your Library with your key when you receive it, but note that it will not pre-load. You can download the game when it unlocks on Thursday, February 27 at 10am PST.

It will take a few days to get all the emails out, so watch your inbox and be sure to check your spam folder. If you don’t receive it by the end of the day on Monday, please contact us at info@hbs-studios.com . We thank you for your patience in advance!

Please note that if you previously requested a GOG.com key for Shadowrun Returns, we will begin sending Dragonfall GOG keys early next week. If you have not requested a GOG or Humble Store key yet and would like one, no problem! Just shoot us an email and we’ll get that to you as soon as we can.

Update on the DRM-free Version of the Game
We've been so impressed with the level of service that our partners at GOG.com and Humble Store have been able to provide that we have decided to let them handle all future DRM-free updates. This will allow us to stay focused on Shadowrun. If you haven’t requested DRM-free keys yet, and would like one, please send us your Kickstarter email address along with which partner you prefer so you can continue to have access to those updates.