The dock will take advantage of the Galaxy Nexus’s side pins and will charge the device at a USB rate, which means that while it might be novel seeing your device charge on a LEGO dock, it will take longer to gain a full charge as opposed to charging via an AC outlet. One of the drawbacks to this LEGO charging dock is that it doesn’t initiate “dock mode” when plugged in, which may or may not be a huge deal. For more photos and some information on how he put this together, pop on over to the XDA forums.