Last modified: 2012-03-07 03:15:20 UTC
Map tiles sometimes do not show up (example: http://screencast.com/t/p4lQCPKBIZg).
Either a Leaflet or Mapquest issue. Will investigate.
Turned out to be a PhoneGap issue :) Fixed in https://github.com/wikimedia/WikipediaMobile/pull/157