An Ubuntu billboard has been spotted in California, USA.

My search of the Web brought me to another page about the Ubuntu billboard that also showed some Google trends comparing Ubuntu to other Linux distros. It shows the steady increase of popularity of Ubuntu.

I tried my own search of Google trends to compare the popularity of Ubuntu with portable apps. Many travelers have heard of portable apps, but not of Ubuntu. The Ubuntu live CD is a good choice for Linux live CD when traveling.

Here is the data from Google. Ubuntu seems to be much more popular than portable apps. I think it is only a matter of time before Ubuntu is mainstream.