Following last year's example, instead of cluttering the front page with fake product announcements, let's just post them in here instead. One thread where each top-level comment is just a title and a link.
Mark Zuckerberg x H&M<p><a href="http://markforhm.com/" rel="nofollow">http://markforhm.com/</a><p>Discussion: <a href="https://news.ycombinator.com/item?id=11403094" rel="nofollow">https://news.ycombinator.com/item?id=11403094</a>
My Little LLVM: Undefined Behavior is Magic!<p><a href="http://blog.llvm.org/2016/04/undefined-behavior-is-magic.html" rel="nofollow">http://blog.llvm.org/2016/04/undefined-behavior-is-magic.htm...</a>
Left-Pad added as a syscall to the kernel - <a href="https://lkml.org/lkml/2016/3/31/1108" rel="nofollow">https://lkml.org/lkml/2016/3/31/1108</a>
Google Japan announces physical flick-based JP input device<p><a href="https://m.youtube.com/watch?v=5LI1PysAlkU" rel="nofollow">https://m.youtube.com/watch?v=5LI1PysAlkU</a>
RedMart - Get your groceries delivered yesterday<p><a href="http://timetravel.redmart.com/" rel="nofollow">http://timetravel.redmart.com/</a>
Get your apps and games ready for space with Google Play: <a href="http://android-developers.blogspot.co.uk/2016/03/get-your-apps-and-games-ready-for-space.html?m=1" rel="nofollow">http://android-developers.blogspot.co.uk/2016/03/get-your-ap...</a>
RATP (Paris Metro) announces new station names
<a href="http://www.ratp.fr/fr/ratp/v_149039/metro-rer-la-ratp-renomme-13-stations/" rel="nofollow">http://www.ratp.fr/fr/ratp/v_149039/metro-rer-la-ratp-renomm...</a>
Google did the drop mic reply in Gmail<p><a href="http://thenextweb.com/google/2016/04/01/gmails-mic-drop-tool-april-fools-joke-wish-real/" rel="nofollow">http://thenextweb.com/google/2016/04/01/gmails-mic-drop-tool...</a>
Google Express: <a href="https://www.youtube.com/watch?v=F0F6SnbqUcE" rel="nofollow">https://www.youtube.com/watch?v=F0F6SnbqUcE</a>
Just in: our new line of lifestyle products<p><a href="https://oneplus.net/getsandstoned" rel="nofollow">https://oneplus.net/getsandstoned</a>