So I don't know if I'm the first to figure this out, but I found it too awesome not to tell you about it, so here it goes. I just tried to search for 'Reddit' on the home screen of my Shield where I have chrome sideloaded and something very cool happened. In the results there actually was a tile for reddit.com! When I clicked it, chrome opened on the reddit Frontpage and I could start browsing. Okay after some more trying out, it seems the tiles of chrome only appear when I search for a website, say reddit, Facebook and only if you have visited the website before on the Shield... So, reddit opened, since I visited it before, but Wikipedia wouldn't open. Anyway, I hope google expands this and just gives the normal search results by voice, however for now, this is quite awesome.