Here's a demo video of the new Selection interface that we've been working on:
If you have any suggestions/ideas/comments, please post below.
In case there are other people like me (Firefox 3.0.11) who can't see the video within your posting, I picked the link from the HTML source:
I've never been one for overly complicated interfaces with difficult to remember keyboard commands, but this new interface almost goes too far in the other direction, from hard to get used to to overly simplified, which in itself might be a learning curve of its own kind.
Where/how can we get this new interface?
it comes when it is finsihed per update
What is a reasonable time period in which this update will be public or dev preview?
The new interface is available to try out, you can access it through Menu -> Try New Interface.