Want to send content from your smartphone or tablet but dont want to wait for app developers to add Amazon Fling support into their apps? Then you’re in luck. Amazon just started a new promotion where you will get a free $10 Amazon Gift Card when you buy a Google Chromecast. The Chromecast is currently discounted by $5 and is on sale for $29.99. That makes the effective price just $19.99 which is the cheapest I’ve ever seen for the Chromecast. Just head on over to the promotion page, add both the Chromecast and $10 gift card to your cart, and you’ll automatically see a $10 “Google Promotion” credit applied at checkout. This offer is good through August 9th, but will be cut off sooner if supplies run out, which is bound to happen at this price, so get your orders in quick if you’re interested.