That is clear.

What I'm pointing out is your absolutist view on success may be wrong.

If it doesn't support J2ME it'll be dead on arrival.

If it doesn't support iOS apps, it'll be dead on arrival.

If it doesn't support .exe it'll be dead on arrival.

If it doesn't support APKs it'll be dead on arrival.

"You could trivially build such a system by getting an FTP account". Shared storage doesn't replace USB sticks, it's dead on arrival.