PhoneGap(Cordova) Contacts.find() method should be enhanced to have multiple options for filters including wildcard filtering. Besides, there is also a very critical requirement for sorting. Phonebook contacts are usually not sorted and especially after the backup/restore using any App, so at this point the need for sorting is much higher. Without that I am afraid one can use it in any App.
Moreover, one can't use Divider List functionality of JQuery Mobile.
I will be very obliged if you make it available asap.