This week, the PIP team is releasing an improved version of the 1-click sign in. The great news is that PIP users are no longer restricted to our small initial list of supported sites. Indeed, you can now add any of your favorite sites to your 1-click list (with a few caveats such as pure flash sites). Over time, we will monitor the most popular sites being added and we will include them to the default 1-click list.
The Internet is getting easier. Happy 1-click navigation!