Last Updated: September 10th, 2013
A Google Play Music update v5.2 just popped up in the Play Store, though it's being slowly rolled out, as is the case with many big Google apps nowadays. The previous version is 5.1, and indeed I'm seeing quite a few changes inside that would warrant a point release.
Update 9/10/13 4:00pm PT: the official changelog has been posted:
* All Access Genre Radio is here!
Last Updated: August 29th, 2013
Remember that nifty multi-carrier LTE version of the Nexus 7 that was shown off when the tablet was revealed last month? Google has been mum on a specific release date for that version, but United Kingdom carrier O2 is more than willing to chat it up. According to both a tweet from the official 02 account and a short blog post, the "4G" Nexus 7 will hit the UK on September 13th.