Oh my, that's awesome!

As for passwords, currently you can't log in with power Master Password on https://steemit.com site, instead you should go to https://steemitwallet.com to get your individual keys, well suited for different activities. Private Posting Key is one that should be used to log in on Steemit site, for day-to-day activities such as posting, commenting, upvoting. Active Private Key should be used only on a wallet site, for financial related operations, witness votings, proposal votings etc.
Some of the changes were outlined here: @steemitblog/social-condenser-is-live

If you have any more question don't hesitate to ask.