It’s no surprise that Microsoft has been working on Windows 8 for a while, moving from general
planning to more in-depth discussions in the spring; earlier this month the Windows team finalised the key scenarios.
That’s not down to dissatisfaction with Windows 7; Microsoft always starts planning the next version as soon as it’s clear what’s going to make it into the version under development.
Seadragon?
The team behind SeaDragon and the Deep Zoom feature in Silverlight is recruiting a Lead Developer but the ad only says they “want to take it” to Windows 8 (as well as Windows Mobile 7, XNA for Xbox and WPF for Vista and Windows 7).