A few weeks ago, I got a few new implants: a pet chip underneath my armpit, a large spherical magnet implant called the m08s between my thumb and forefinger, and a DESFire implant called the xDF3 in the middle of the back of my right hand. AFAIK, I'm actually the first to get the m08s implant. I'm happy to report that everything has been healing well. There was maybe a little bit of soreness when I grabbed something with this hand at first, but that mostly went away relatively quickly. Swelling was pretty controllable with NSAIDs and I was able to take the stitches out after about 10 days. You can see a bit of scar tissue at the incision/injection sites.

Haven't yet done too much with these implants but I couldn't resist the urge to experiment a little bit. I was able to get a 7kB file containing my business card info (including a photo) on my xDF3, so now when you scan it with your phone my contact info pops up. But I plan to do so much more with the xDF3 once I learn how to properly use DESFire. I was pleasantly surprised by the sensing capabilities of the m08s: I wasn't really expecting it to be able to sense 60Hz magnetic fields, but I was able to feel the field coming off my microwave transformer fairly well.

I also played around with some magnets a couple of times. Interestingly, if I put the magnet into an orientation where it repels my m08s, I can push the magnet around for a few seconds, but then my spherical magnet rotates inside of me to realign the field and it starts attracting the magnet. My fingernail paint is also ferromagnetic and I can actually slightly feel it if I wave my nails over the magnet. 

Spherical magnet implant (m08s) after a month of healing