With the ThinkPad R52 due to problems mentioned in the Fedora power article, we only had Linux Bootchart results for Fedora 12, 13, and 14 Alpha. With this oldest Pentium M notebook from Lenovo the Fedora 12 boot time was at 32 seconds while it regressed to 38 seconds and then in the Fedora 14 Alpha release it's at 49 seconds, but right now we're not too concerned about the Laughlin numbers unless the boot time doesn't drop prior to the final release in November. The maximum disk throughputs here were 11MB/s, 12MB/s, and 20MB/s.
Fedora's boot time may not be improving, but at least Red Hat engineers are improving other areas of the upstream Linux stack like with Btrfs system rollback support in yum, shipping the Nouveau Gallium3D driver, an attractive boot experience with Plymouth, and plenty of other features. Fedora is also not incapable of being made to boot fast as Moblin/MeeGo, which was derived from Fedora, has achieved some very impressive boot times.