Just out of curiosity. Today i tried to install, authorize and use QNeptunea for the first time ever, ver. 0.4.1 (using Tweetian instead). And it still works! Only little workaround is needed: authorizing URL opened by QNeptunea in the N9 browser needs to be copied/rewritten to modern PC browser (e.g. Firefox 58 on Win7) and the auhorization completely done here. After getting authorization PIN it needs to be rewritten to QNeptunea authorization dialogue.