BP My Home makes it possible to add moveable and collapsible widgets to BuddyPress Member's home.
Yes, and it works fine in 1.9 beta 2 !
Yes, simply drag it into one of the two BPMH sidebars.
It's important to note that they won't be loaded anymore. All the data they've created in usermetas will still be there, and you can easily transform your old BPMH widget in a new one by using the widget skeleton i've put on github.
Ask it here