I totally agree with Ciromattia (Ciao!!!!!)!
I prefer working on Kindle to working on PC so I tend to limit the needing of working on the comic.
BTW, Komic and KCC both try to fill a big hole in Kindles (reading comics).
And I think we are not going to see anything like Komic/KCC on next firmwares just because we provide a way of reading CBR/CBZ (aka "free"....).