Nota:
It is and has been almost from the beginning.
There is good news. Version 10.10 does not require hard disk partitioning and will allow a full install within Windows. I am currently using this version (upgraded from 10.4) and find it solid reliable and a lot less hassle than running partition manager.
I don't recommend 11.04 yet. It is still in development and has a limited interface.
Cheers,
Bill