According to Amazon's information page, http://www.amazon.com/gp/video/ontv/...bile%20Devices
, Amazon Instant Video (AIV) is only available on the Kindle Fire (all versions), the iPad (all versions) and iPad mini. It's not available for any other tablet.
My daughter can watch AIVs to her first generation Fire, but I cannot do the same on my GTab7+.
The same holds true for the lending library.