There isn't any integration, but you can exploit the overlap between Google+ and Picasaweb to make it fairly straightforward to push photos from Android to several different print services.
(I just tried it with someone else's public album, so it at least works at the moment. A Google+ user number will also work in picasaweb.google.com urls. Set up the url, click through the redirect and there you go.)
(I just tried it with someone else's public album, so it at least works at the moment. A Google+ user number will also work in picasaweb.google.com urls. Set up the url, click through the redirect and there you go.)