We first saw magazines begin to appear in the UK Play Store just yesterday, leaving us sure that the additional content wasn't far away. Turns out that hunch was right, and this evening Google's selection of magazine content is available for purchase both on the web and Android applications. If you're not seeing the new section show up yet, you can always try the old trick of heading into Settings>Apps and then force closing, clearing data and re-starting the Play Store app.
In addition, you'll need to grab a copy of the Magazines app from Google in order to read your content. Hit the download link at the top to grab a copy, but users with a Nexus 4, 7 or 10 may find an "enable" button in place of an install button on the app listing page.
The good news for UK buyers is the UK-centric content available for purchase -- for the run down check out the list we posted yesterday. It's great to see more Google Play content arrive on British shores, and as it sits now we're only waiting for TV Shows before we have the full set.