HubbleSite.org Video about 10 release images.
Full HubbleSite.org release page with 56 release images.
Images include NGC 6302, Carina Nebula, Stephan's Quintet, Markarian 817, Abell 370, and a few others.
Great looking stuff, the WFC3 has twice the resolution of the WF/PC2, on the CCD at least, if memory serves correctly.
Eta Carina is a fascinating object, and there are at least two releases in this 'Early Release Observations' set."