Software Center works in my installation, which only have ppa:s for Spotify, Wine and My-Weather-Indicator. Ubuntu one didn't work this morning, but after these updates it is OK.
Code:
Commit Log for Thu Jul 11 09:56:04 2013
Upgraded the following packages:
account-plugin-facebook (0.11+13.10.20130628-0ubuntu1) to 0.11+13.10.20130711-0ubuntu1
account-plugin-flickr (0.11+13.10.20130628-0ubuntu1) to 0.11+13.10.20130711-0ubuntu1
account-plugin-google (0.11+13.10.20130628-0ubuntu1) to 0.11+13.10.20130711-0ubuntu1
account-plugin-twitter (0.11+13.10.20130628-0ubuntu1) to 0.11+13.10.20130711-0ubuntu1
account-plugin-windows-live (0.11+13.10.20130628-0ubuntu1) to 0.11+13.10.20130711-0ubuntu1
gir1.2-dee-1.0 (1.2.5ubuntu1+13.10.20130630-0ubuntu1) to 1.2.5ubuntu1+13.10.20130711-0ubuntu1
gir1.2-goa-1.0 (3.8.2-1) to 3.8.2-1ubuntu1
gir1.2-networkmanager-1.0 (0.9.8.0-0ubuntu14) to 0.9.8.0-0ubuntu15
gnome-orca (3.9.3-0ubuntu1) to 3.9.4-0ubuntu1
libaccount-plugin-generic-oauth (0.11+13.10.20130628-0ubuntu1) to 0.11+13.10.20130711-0ubuntu1
libaccount-plugin-google (0.11+13.10.20130628-0ubuntu1) to 0.11+13.10.20130711-0ubuntu1
libdee-1.0-4 (1.2.5ubuntu1+13.10.20130630-0ubuntu1) to 1.2.5ubuntu1+13.10.20130711-0ubuntu1
libgoa-1.0-0 (3.8.2-1) to 3.8.2-1ubuntu1
libgoa-1.0-common (3.8.2-1) to 3.8.2-1ubuntu1
libnm-glib-vpn1 (0.9.8.0-0ubuntu14) to 0.9.8.0-0ubuntu15
libnm-glib4 (0.9.8.0-0ubuntu14) to 0.9.8.0-0ubuntu15
libnm-util2 (0.9.8.0-0ubuntu14) to 0.9.8.0-0ubuntu15
libqpdf10 (4.2.0-1) to 4.2.0-2
libvisio-0.0-0 (0.0.28-1) to 0.0.30-1
network-manager (0.9.8.0-0ubuntu14) to 0.9.8.0-0ubuntu15
python-configglue (1.1.1-0ubuntu1) to 1.1.1.is.really.1.0-0ubuntu1
qpdf (4.2.0-1) to 4.2.0-2
qtdeclarative5-ubuntu-ui-toolkit-plugin (0.1.46+13.10.20130710.1-0ubuntu1) to 0.1.46+13.10.20130711-0ubuntu1
ubuntu-ui-toolkit-theme (0.1.46+13.10.20130710.1-0ubuntu1) to 0.1.46+13.10.20130711-0ubuntu1