> We won't have the option to install an open source OS on our phones like we have with PCs.
Except you're conveniently forgetting the fact that Android is open source. Google continues to release a phone each year with an unlocked bootloader, on which you can install versions of Android modified to your heart's content.
My point was not that we don't have choice today (we do), it's that we're not going to have choice in the not-so-distant future as these other OSes die off (incluing Firefox OS).
Sure, you can root some Android devices and install Android ROMS like Cyanogen... but those are just Android. We're going to lose the creativity we're currently seeing in Jolla, Windows Phone, Firefox OS, Blackberry, etc.
Except you're conveniently forgetting the fact that Android is open source. Google continues to release a phone each year with an unlocked bootloader, on which you can install versions of Android modified to your heart's content.