I want to run multiple Google Chrome application windows logged into the same web site (Twitter.com, say), each with different credentials. Is this possible? If so, how?
My initial testing shows that multiple Chrome app windows are not sufficiently isolated to do this. Logging into the second account logs me into the second account in both windows, suggesting that they are sharing information just as two Chrome tabs might.
You can use a Chrome "Incognito" window for this.
As you've found, Chrome windows are (like in most browsers) just groupings for tabs, not an authentication barrier.