Hynee writes "As tweeted, NASA has released 10 new images, all from the new WFC3 instrument [Link broken at publish] and others, including the Cosmic Origins Spectrograph.
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."