Feisty Fawn is going to be the next Ubuntu release, currently scheduled for release on 19 April 2007. See the [:FeistyReleaseSchedule]
The "feisty" repository has been opened, shortly after the release of Edgy.
The name "Feisty Fawn" was announced [https://lists.ubuntu.com/archives/ubuntu-devel-announce/2006-October/000212.html in the mailing lists] by MarkShuttleworth.
Feisty goals will be taken from those in Launchpad's Blueprint tool at https://launchpad.net/distros/ubuntu/+specs and will eventually move to https://launchpad.net/distros/ubuntu/feisty/+specs