Android will let you try games without installing them thanks to Search Trial Run Ads
Power of the cloud

We don't often cover software updates here on Pocket Gamer but I thought this was newsworthy. Android just announced at GDC that it will soon let all Android users try apps directly from a search result without installing it.
Running via a streaming API, you'll just have to hit the "Try Now" button when you search for an app and you should be all set.
Here's what it looks like:

You'll be limited to the first ten minutes of the game but this is rather neat and a new way for developers to communicate about their apps.
Of course, since it uses a lot of bandwidth, this will restricted to Wi-Fi only.
You should see it pop up on your Android phone and tablet soon.
[Source]