Hi folks,
thanks to the WMF mobile team, http://en.m.wikivoyage.org/ and other language versions should work now. The automatic redirect (causing your phone to go the mobile site when you go to en.wikivoyage.org) isn't set up yet, but is in progress.
Note that MaxSem (one of our mobile team members) set up the mobile Main Page for English, but the community should improve further on this initial configuration, and the same needs to be done in other languages.
It's really easy to configure a Main Page in your language. Essentially, it's a matter of adding a selector ID in the right places of the wikitext of the Main Page. See:
https://meta.wikimedia.org/wiki/Mobile_Projects/Mobile_Gateway#How_do_I_form...
(This is necessary because Main Pages typically are formatted for large screen sizes and can't easily be converted into a mobile view.)
All best, Erik