Me and Rohan and Harald spent the day playing with the cheapo Sony Vaio laptop I got with Windows 8 and UEFI firmware.
This laptop has many partitions:
I've no idea why there are two efi partitions
We installed Kubuntu but it didn't set up Grub and we couldn't do much useful at the Grub command line.
So we installed Ubuntu Unity 13.04 and it successfully set up Grub so we could boot from Grub into Ubuntu. Grub also listed Windows 8 but it gives an error on trying to boot "error: can't find command drivemap error: invalid EFI file path". Grub also listed windows recovery and this does boot and lets us boot into Windows 8 but that then stops Grub being loaded so there's no way to reboot into Ubuntu. see log.
Then we tried to install Kubuntu again and it give an error during install about the grub setup package not configuring right see bug for log.
If you go to ubuntu.com to download it points Windows 8 users to this scary UEFI wiki page with scary headings like "Installing Ubuntu Quickly and Easily via Trial and Error".
Conclusion: UEFI is a giant MS conspiracy to make installing Linux more faffy than it already is. Kubuntu is slightly more broken then Ubuntu but not much. Only silver lining is that Windows 8 is rubbish and when we tried it there genuinely was a notification saying "Warning: your children might not be protected". Think of the children and don't use Windows 8!
Oh well, here's some pretty pictures to keep you amused.