On Android 2.3.6 on Samsung Galaxy S2 phone, using jquery 1.8.3 and jquery mobile 1.2.0
NATIVE select menu's change event does not fire. Menu length immaterial. No problem in Chrome on a PC or Firefox on a PC or IOS on iPhone or iPad.
Non-native menu does fire the event, but the non-native menu is extremely unstable. Sometimes fires itself with no user input, sometimes results in the wrong choice.