Slidingdraw top block functionality into all sub themes?

I have just been playing with the 7.3 dev with the the 7.3 of AT-commerce and then trying to copy the Slidingdraw top block functionality into Pixture reloaded (failing but will keep trying!) but it made me want to ask if you would consider adding it to all the upcoming 7.3 sub themes? Afterall if people dont want it then it never shows. Just a thought and thanks from the community for all your great work