I have installed the Windows 8 consumer preview and all working fine, with the exception of the communication apps (mail, calendar & people).
The apps were working during initial installation process, but at some point ceased to operate. The message I receive when launching is "Mail can't open", "Calendar can't open" and "People can't open". I also note that the Weather app doesn't work, and simply hangs on loading screen.
I have attempted install numerous times, but cannot establish the point at which the apps stop working. I assume it probably relates to one of the updates, but that is only a guess.
Has anyone else experienced this? Does anyone have any ideas on resolution?