Q: Which ones of the 6 wallets listed don't have a GUI?
A:
buzz...wrong answer again.
apology accepted!
with all the time you spent trolling drk you could have thrown together an official, open sourced, gui desktop wallet.
Oops. I agree, I screwed up. I never realized simple wallet was even on that chart! I thought it was only third party ones listed...
Still, there are 5 GUI wallets and 4 fully-open source wallets there.