Web apps are great no matter the platform, and Amazon seems to think the same thing and is broadening their support for HTML 5 apps, setting developers up with the ability to bring their already existing HTML 5 apps over to the Amazon Fire TV set top box and the Amazon Fire TV Stick. There are already a range of regular apps from Amazon's app store available through both of those devices, and now with the added support of apps based off of HTML 5, users should end up with many more options when looking for things to install on those two streaming devices.
With this announcement, this makes both the Amazon Fire TV and the Fire TV Stick more useful to the consumer and could make it a more popular device. From a consumer stand point, I would be more inclined to purchase either of these devices now that Amazon is opening support to them for web apps. Amazon already offers an HTML 5 web publishing tool kit which developers can use for Amazon's other devices like the Kindle Fire tablets and Fire phone, and it only makes sense that they extend the compatibility to the living room on both of their streaming devices. Amazon states that to make things easier, they have added some things to Amazon WebView which is the technology that powers the web apps on the Fire platform.