@Spandey808:

thanks for the update. I knew that I could write to them, but had hesitated - reason being that responses from USCIS officer really depends on that officer.
Looks like you had a good response. I tried to stay optimistic and just wrote a brief message explaining my situation. Hope I will hear from them in couple of hours, if not I am going to call today. Today is the 77th day and it's frustrating not to see even small changes in the application.

On the side note: My wife's situation is similar (trying to transition from TPS to F2), I am in full F1 though. Our document was accepted 33 days ago.
If you would like we can stay in a personal communication on this matter. I will inbox you my number. If you would like to talk give me a call.

Thanks,