After August 15, the Google Play store will no longer allow new downloads of Adobe's Flash player software, and Flash will be entirely unsupported on Android 4.1, which Google unveiled earlier this week at the Google I/O event in San Francisco, where they also launched the Nexus 7 tablet, the first to ship with Android 4.1.
If you need Flash on your devices, you've got until August 15 to download a copy. After the cutoff date, existing installs will continue to be eligible for updates, but new devices will not be able to download the mobile versions of Flash.
Developers will continue to have access to archived versions of the software, but Adobe cautions against running Flash on Android 4.1 devices.
According to Adobe, "if a device is upgraded from Android 4.0 to Android 4.1, the current version of Flash Player may exhibit unpredictable behavior, as it is not certified for use with Android 4.1. Future updates to Flash Player will not work." They recomend uninstalling Flash on any devices running Android 4.1, including the Nexus 7.
When Steve Jobs announced that the then-new iPhone wouldn't support Adobe's Flash, naysayers predicted the lack of Flash would cripple Apple's mobile platform. Instead, the iPhone, and the iPad that followed, were runaway hits. While Adobe initially pushed back at Jobs' critique, Flash has come under increasing fire for instability and heavy power requirements, both of which make it challenging on mobile platforms. Adobe eventually started to shift its focus to HTML 5 and Air apps.