Here's a nice blog-review about studies that discovered variations causing diseases with next-generation sequencing.

In addition to the content, I like the comment of the author that there is no time to write a review paper given the speed of the field development. Obviously what he means (since he has written the material already), is that publishing in a journal has very high overheads for the author(s) that simply slow down communication of information. In this case, I would argue that the comments have served a similar role as peer-review, prompting the author to add links to the papers, adding to the information or modulating the claims of novelty (see comment about RET).