48 hrs now since talking with Microsoft.
I agree it is an iOS issue but Microsoft can typically find a fix around the situation regardless of the root offender. The hope is that the events may still be tagged such that Microsoft may still be able to correct the events. Regardless, Microsoft has elevated the case two levels to correct the issue. This is much more than Apple has been willing to do. Their response thus far has literally been "let us know what Microsoft says". I am not necessarily working with Microsoft but more not working with Apple (for their dis-interest in the situation). Microsoft has been on the phone with us taking traces of email calendar activity to see what the underlying problem is.
I work in education and I have since halted all further deployments of iOS devices since the majority are administrative personnel and they would definitely be hooking into the Exchange environment. My recommendation has been to my student base is to also halt deployments if they are putting students into their Exchange environments.
Not that I am an Apple basher but I don't think Apple is ready for the enterprise. Now that I have moved to a Galaxy S II, I feel safer that I will not miss my meetings. i live by my calendar. My 4s in in my drawer for now.