Mobile default for sister projects

Rationale
Currently, Wikipedia is the only Wikimedia project that provides automatic redirection to the mobile site (via the mobile domain) for mobile devices. This functionality should be extended to all Wikimedia projects so mobile users can have a better experience interacting with the other projects from their mobile devices.

Timeline

 * Move projects with language subdomains to automatic redirection first (ensure that the top 10 lang subdomains for each project has a configured main page)
 * Reach out to project communities to begin testing the mobile version of the site to begin identifying mobile layout issues for that project
 * Update redirector C code to handle new domains
 * Test automatic redirection and C code aggressively
 * Move remaining projects to automatic redirection
 * Establish a mobile domain pattern and mobile domains for wikimedia projects (eg commons.m.wikimedia.org)
 * Establish mobile domains for remaining projects (eg wikitech, wikimediafoundation.org)
 * Update redirector C code to handle new domains
 * Update MW core to properly handle redirection of '/' requests to Main Page on mobile view

Sibling project automatic redirect progress matrix

 * Considered complete if top 10 languages (by traffic) have configured a mobile main page, or if a singular project with a mobile main page
 * Has no subdomains
 * Subdomain of wikimedia.org
 * Hosted off-cluster

Projects with configured mobile main pages
The following is a breakdown of projects that have language subdomains and whether or not they have a mobile 'main page' configured yet. This was automatically generated using the check_wiki_main_page.py script. A 'Has main page?' status of 'None' means there was an error during automated main page detection.

Top 10 most visited language projects

 * Has main page configured