Comment 1 for bug 512696

I can confirm this in Karmic. This spelling mistake is when using the "software centre", but synaptic has the correct spelling.

$ sudo apt-cache policy software-center
software-center:
  Installed: 1.0.3
  Candidate: 1.0.3
  Version table:
 *** 1.0.3 0
        500 http://mirror.optus.net karmic-updates/main Packages
        100 /var/lib/dpkg/status
     1.0.2 0
        500 http://mirror.optus.net karmic/main Packages

$ sudo apt-cache policy app-install-data
app-install-data:
  Installed: 0.9.10.11
  Candidate: 0.9.10.11
  Version table:
 *** 0.9.10.11 0
        500 http://mirror.optus.net karmic/main Packages
        100 /var/lib/dpkg/status