Here is a video from Sony about this topic:
Here is a video from Jessops about the Sony range of mirrorless cameras:
Here is a panel about the subject of Mirrorless from the school of visual arts.
Here is a discussion of Mirrorless from DPReview
Those are some very compelling reasons to look at mirrorless cameras. You may be asking yourself what are the best adapters for Sony Mirrorless cameras? Finally, check out this link for some of the best deals you'll find anywhere on mirrorless cameras.