I use mobile a lot with Stack Exchange, but I can't say I see a rationale to allow access to the review queue on the mobile site.
- The site is already minimal as it is. It's difficult to compare revisions side-by-side on a 4 inch screen.
- The quality of reviews may suffer, as there's less flexibility to make good revisions to posts.
- It's another thing to add to the mobile site, and it already feels a fair bit cluttered (at least to me).
Not really a fan of adding reviews to the mobile site. If you want to do reviews, either use a tablet that can see the whole site, or use a machine in which it's easier to perform reviews on.