I am just curious if anyone has heard any news if Medtronic has filed for mySentry approval with the Medtronic 530G pump. I really need the mySentry, as I sleep through the alarms. I also have autoimmune autonomic neuropathy, and I need to keep my diabetes under as much control as possible, and something that would help is hearing the alarms. Medtronic will give no warranty or technical support to 530G users using the mySentry. It's too expensive and risky of an investment to get without formal approval. So far, the Medtronic 530G pump has been amazing. But, I have noticed that if you put the "overtape" on more tightly, on the transmitter, you get less accurate numbers.