Research In Motion announced today, through Twitter, that the Kobo eReader will come pre-loaded on to the BlackBerry PlayBook. During the DevCon 2010 keynote we saw Kobo briefly in the teaser video of the PlayBook, but no one thought anything of it at the time.

Kobo currently offers over 2.2 million eBooks to download. Kobo also announced at DevCon 2010 that they will utilize the social integration of BBM. It will be interesting to see how the Kobo app will run on the PlayBook. We also assume current Kobo users will be able to transfer current purchased eBooks to the BlackBerry PlayBook.