Just got an email from inkrepublic.com. Early this year I was asking them if they would have 3880 refillable ink carts, they told me they were working on it, and now they finally released the first 3880 refillable cart last week. It looks identical to their 3800 iRefill (which many people love this refillable cart and the way it can reset waste ink tank) except both VM and VLM carts
The process looks simple, remove 7 OEM carts, pop-off the OEM chisp, attach to their iRefill carts - InkRepublic provides two control chips. No chip resetter needed. (this is actually better than any other 3800 refillable carts).