The title has no hint of sarcasm, honestly.
The Mobile IE team just posted a follow-up to their decision to implement a subset of Webkit’s vendor prefixes and it is nothing but good news:
After hearing the community’s feedback on this issue (and a couple of face-palms when we realized the broader implications of implementing other browser vendors’ CSS properties), we’ve decided that it’s best to only implement the -ms- prefixed version and not the -webkit- one.
That is music to my ears. Good job Microsoft, I applaud you.