goodroi - 9:41 pm on Apr 30, 2012 (gmt 0)
Google has been doing this for a long time. If Google thinks it is useful to the user they may display something different than your original title tag. It is not necessarily a bad thing. Google monitors CTR and if they see a higher CTR then they are more likely to display the altered title in the future. Google's altering of your title in the SERPS is likely driving more traffic to you.