Google has posted a video and an accompanying, printable guide for grandmothers to understand how to use Gmail's video chat feature. Google wants you to be able to easily show your grandparents how to use Gmail video chat, because let's face it: a lot of grandparents aren't hip to all of the latest web trends (if you are a grandparent that is hip to them, than good for you!). "Often when I tell people that I work on Google video chat,