The Khalili Foundation partnership has shared 22 more images, including three scans of Japanese textile artwork taken with the Google Art Camera. The images look like paintings at first glance, but the high resolution (more than 100 megapixels) photography shows that they are built up by individual stitches of silk.
Images and references from the Khalili Foundation have been used to create new articles on the Spanish metalworker Plácido Zuloaga, on the Japanese porcelain artist Yabu Meizan (in draft), and on a garniture that was exhibited in Chicago in 1893 (in draft). The same information has been used to improve a range of related articles. I have also started a List of collections of Japanese art, which doesn't pretend to be comprehensive, but is a start.
The Khalili Collections are sharing content with Google Arts and Culture at the same time as with Wikimedia, and this project is an illustration of the different interfaces and functionality offered by Google and Wikimedia. Compare a Google online exhibit with a Commons gallery. Google has a much cleaner and pleasant interface, but Wikimedia provides more links back to the institution's catalogue, has more data fields about each item, and allows users to contribute, for instance by annotating large images.