I've been busy trying to make enough money to pay my bills. Consulting jobs are few and far between these days, so when they do come in I have little time for much else. I'll try and finish up this project. I'm glad to see that someone actually looks at these circuits.
Actually, little voltage is induced into other parts of an electronic circuit nearby. Cell phones also have excellent shielding and ground planes, so there should not be any problems. This wireless power transfer technique is used on most 125KHz and 13.56MHz RFID readers, where the excitation coil is quite close to the rest of the RFID reader electronics. About a decade ago, I designed a very popular (HID "Miniprox") 125KHz RFID reader, where the exciter coil was mounted on the edge of the reader circuit board. Several million readers were sold.