(I searched and re-searched and searched once more, yet as far as I know it hasn't been discussed here yet:)

Google Maps now added Google Earth view, using (I think) the Google Earth browser plugin (http://blogoscoped.com/archive/2008-05-28-n65.html):
http://www.youtube.com/watch?v=YHe3ag3i8v8

Google's Blog post from yesterday:
http://googleblog.blogspot.com/2010/04/earthly-pleasures-come-to-maps.html

Yes it is the same plugin and it still isn't available for Linux >:(

Hopefully I'm a Linux user too, because I can't believe I would have to download a such big plugin to see these data. Ionut did a great article about that yesterday.