Just upgraded to 1.5 and it messed up the formatting quite badly on my mobile and tablet themes on the site http://www.manjawachsmuth.com.
I’ve since reverted to 1.4 and now it’s working fine.
The upgrade moved the main slideshow to the right, the logo and menu very far up and things were overlapping. Images were also not loading and it was just generally unusable. I’m running WordPress 3.8 with everything else updated.