Their project is abandoned and nobody has reported any bug or backdoor AFAIK. I think you can use it! I recommend Tails or BackTrack.
What do you mean by use Tails or BackTrack ? you mean instead of BitKey or along with it
BackTrack is dead as far as I know so there is Kali linux now instead . but does Bitcoin wallets works on those Operating system at least
Instead of BitKey. Tails offer both privacy and security. Kali Linux is for especially penetration testing and digital forensic. You can go for Tails.
You are right. I got confused. BackTrack is rebuilt and distributed under the name Kali Linux but I got confused, which one is the former and which is the latter. Thanks for correcting!
You are welcome
I got an another question because it dosen't make sense to me when they ask you to run LiveCD thing how you are supposed to keep that watch-only or whatever you made on the LiveCD if you will reboot later ?
I thought LiveCD is only for testing and it's never saved or anything , I mean if I do something , reboot PC and re-enter again I will find everything gone , right ? At least this what I understood last time when I was installing Ubunu (not topic related to BTC) .