We've seen hints of them in the Google Play app and some pretty clear evidence of them in the wild, and now Google has finally officially announced the availability of Google Play gift cards. Those are available in $10, $25 and $50 denominations, and will be rolling out to Target, RadioShack and GameStop retail stores in the United States over the next few weeks (no word on availability outside the US just yet). According to Google, they'll also be available on Walmart.com later this month, but not in Walmart stores for the time being. As you'd expect, the cards can be used to purchase anything on Google Play, including movies, music and books in addition to apps (or in-app items).
[Thanks to everyone who sent this in]