Development continues full speed ahead on 2.5. Thankfully keeping us informed some developers have been posting youtube videos of new additions/works in progress as they happen. We thank you for this.
*Note: These are early interface development videos. Consider them as such.*
Please be aware you aren't even seeing an actual interface as of yet. I'd like to repeat these are development demos. Nothing beautiful, not concrete and hardly visually complete. Lets not form opinions until we see some real visual elements. The developers know what the community wants and we know they will do their best to ensure that all are properly satisfied to the best their abilities. Enjoy the videos! I will add additional videos to this post as I find them. And as usual if anything big and new develops you'll see a new post on BlenderNation.
I recommend watching them in the order I give them to see how things are developing.
This video shows the first development of the interface with create new window functionality and toggling full screen.
This video shows the scaling of windows being updated in realtime.
This video shows saving of different window layouts. (For diehard non-overlapping interface fans it appears at this stage of development that this will still be easily done.)
This video shows a first test of vertical and horizontal splitting.
This video shows interactive split area with cancel.
Test 2.5 Dev builds are available on Graphicall.