What is this funky application launcher?

[Paul Oppenheim]

There are several that work like the OS X dock. Here is a recent article 
I found from osnews.com:

dockers for linux
http://liquidweather.net/howto/index.php?id=111

+ paul

Dave M G wrote:
> Ubuntu Users,
> 
> In this "Vista versus Ubuntu" video:
> http://www.ubuntuvideo.com/ubuntu_beryl_vs_windows_vistas_aero
> ... near the end when demonstrating Ubuntu, they show an application 
> launcher near the top of the screen that has the Firefox icon and 
> others. It behaves a little like the Mac application launcher, and seems 
> to replace at least part of the Gnome panel.
> 
> I have Beryl installed (I love Beryl!), but I can't find any option 
> within it to enable an application launcher that looks like the one in 
> the video.
> 
> Is it part of Beryl? An add on? A separate package?
> 
> Thanks for any advice or tips.
>