The Q is of course: how many do you need to support. This is the same as with browsers. If you have to code for blind people using IE6 with JS off, you are coding for the lowest common denominator. This happens.
If you can just code for "The 90% with a reasonably modern browser, at least one working eye and JS enablded" then you are in a different situation.
Fragmentation hurts the people in the first camp that need to support 99% or more, for example if you are coding an app for a government service and not for a startup.
If you can just code for "The 90% with a reasonably modern browser, at least one working eye and JS enablded" then you are in a different situation.
Fragmentation hurts the people in the first camp that need to support 99% or more, for example if you are coding an app for a government service and not for a startup.