The transition to X.Org 1.10 in sid has begun. DO NOT dist-upgrade so long as REMOVES are being shown, as doing so would remove the xserver video and input packages leaving you unable to start X.

Updates about this issue will be posted in the relevant thread in the "Upgrade Warnings" section of the forum here [1].

Additionally, the transition to Perl 5.12 has begun. Relevant details here [ http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=619117 [2] ]. Again, DO NOT dist-upgrade so long as REMOVES are being shown. These transitions should be over shortly, so a little patience will go a long way in keeping your system up and running.