Last modified: 2012-06-01 17:27:43 UTC
Leaflet supports them on iOS, and soon - on Android 3.x+. Should enable them on supported platforms.
Additionally in WLM app I've got a plugin that can enable a more primitive pinch-zoom on Android 2. When using pinch-zoom we should also disable the zoom controls since they take screen space and can overlap with marker popups.
Untested on iOS and Android 3.x device yet, work in progress: https://github.com/brion/Wikipedia/commits/pinchzoom-map currently disables the zoom controls and enables touch-zoom unless we're on Android 2.x in which case it leaves them as-is. Next step to add the plugin.
Tested & confirmed ok -- but note that on Android 4 markers are still hidden by bug 36105. Merged in 0906cfd8209c1727680c99ba1af44f714736bde3 Opening a separate bug 37280 for the Android 2.x pinch-zoom, since we haven't merged the Cordova 1.7 update yet I don't want to fiddle with backporting the plugin.