Anyone with an Apple mobile device - iPhone or iPad or iTouch - is familiar with the "This device does not support Flash" message, especially when browsing websites such as YouTube.

And now in a move that will have big consequences for everyone, Microsoft has announced that it's new OS Windows 8 (which is a big deal, but that's another blog post) will have a mobile version called Metro, which will not support Flash.
Basically explained for most of us, this is because playing a Flash component on a web page requires a plug-in for your browser. Which Metro will not use. This is with the aim of using less battery power, bandwidth, and being touch interface friendly, and open web standards - all those goals that mobile devices are striving for.
What does it mean? Well, basically, if you want your website to be visible (specifically the picture or video parts of it) then it's time to "remodel" without Flash. Or at least develop a "mobile only" version.
All those lovely home page rotating images, they can still be there, but not in Flash. Apparently, Microsoft recently examined 97,000 web sites, and discovered that 62% of them do currently use Flash - but many of those use it only to display ads, not their content.
All the numbers say that a larger and larger proportion of web browsing is done on mobile devices. And now that Microsoft has joined Apple in this particular attribute, this is one feature that's going to become almost impossible to ignore.
So, it's time to look again at your website, and decide what YOU are going to do.