Bloomberg is reporting that Nokia has made an investment of between $7million and $15million into Pelican Imaging, who make Array Camera lenses, which uses multiple tiny lenses instead of a single larger one. Read their story here.
It should mean Nokia will continue to be at the cutting edge of smartphone camera technology, bringing more firsts to mobile, as they did with the 41MegaPixel sensor found on the 808 PureView (and possibly soon to come on a Lumia phone). They were also first to bring Optical Image Stabilization to a smartphone with the Lumia 920.
The video found on this page, also found here on YouTube explains a little more what they do.