New roundup of tests and reviews: Reviews: Review by Richard Wong. Hands-on by TheVerge. Hands-on by Engadget. Hands-on images at L-rumors. S1R review at Photographyblog. S1 review at Photographyblog. HAnds-on at Photothisandthat Lumix S1 vs S1R comparison from press event in Barcelona (MirrorlessC…