Well I'm sat here typing this on Google Chrome - which is Googles very own web browser.
To be honest, it looks like your average web browser with a cool interface. However it has some super cool stuff backend which make it super quick and generally very stable.
I would suggest people check it out just for the fun.
http://www.google.com/chrome
There is actually a comic which explains the cool stuff behind it too:
http://www.google.com/googlebooks/chrome/
May sound strange, but it's a surprisingly good read