I picked up a Nokia DT910 wireless charger for price I couldn't pass up. Charges quickly and the phone sits at a better angle than the TYLT VU. It has an NFC tag built in and was hoping to use it to make some bed time adjustments. I just found out the built in tag is read only. Is there anything I can use this tag for, or do I need to get a writable tag and stick it on the charger. Thanks!