MeeGo and Btrfs

The main problem I've had with btrfs thus far, having slapped it onto my desktop, is that the management of it is crap. While it has many features, the out-of-the-box userspace tools simply don't allow you to manage them.

Before I let it near anything even remotely important I'd want the standard suite of tools to allow me to remove and rename subvolumes (available via a third-party btrfs tool), and apply block quotas to subvolumes (because if I can't stop a large download using up all my disk space and stopping me from logging in because /tmp isn't segregated from /var, I've got a system which is worthless for multiuser purposes).