I found something interesting in the ObjectStore example in 2.1.
If you compile with -a, -i, -u, -p arguments (apparently not needed in 2.1 anymore) you will get an error on runtime (when tapping) in DefaultPropertiesView.mc:88 , which is:
onTap(null);
while the method signature is:
function onTap()
If you leave the a,i,u,p compile arguments out, you don't get the error.
Are optional method parameters something new and it is OK to add arguments in such way in 2.1? Or it's a bug?