You shouldn't need a plugin for this as support for webSQL(sqlite) is included in PhoneGap 2.3.0.
You can find the documentation here
Example:
var db = window.openDatabase('appdb','1.0','AppDB',5000000);
db.transaction(function(tx){
tx.executeSql('CREATE TABLE IF NOT EXISTS test_table (itemid INTEGER PRIMARY KEY, otherField, someField)');
}, errorCallback, successCallback));