I am getting more and more confused about Metro and Desktop.
Say I write a Metro application in Javascript/Html.
1. Would a person with their laptop/desktop with Win8 installed be able to use my app? Is there a button or something they can press so their desktop environment acts like Metro? Or are Metro apps not usable by Win8 desktop people?
2. Can and how do Metro apps get installed on peoples' Pads/Desktops? Is it exclusively through the Windows Store, or can it be through a download option on my website? Does the Metro app run from an icon, or is it something new?
3. Will Metro apps be able to work on older Win7 or even Vista machines?
Hope you can help. (PS. I am a hobby programmer, so please explain in simple terms, as I get confused by all the lingo.)