It doesn't matter; worse is better. 1999 Yahoo Mail was not a good user experience, but it (and other web-based mail services) destroyed the likes of Eudora.
Ubiquity >>>>> UX.
Ubiquity >>>>> UX.
Problem is, imo, that so much of the web assumes a mouse and keyboard. I keep running into "mobile" sites that are so crammed with links and other tap targets that i have no chance to hit the right one on first try with consistency.
Content is King
I just keep hearing posts about how the mobile web is so clearly superior to apps and it never tallies with the reality on the ground for me.
I still use Thunderbird.