I already ordered my free TiSP self-installation kit from google!
http://www.google.com/tisp/

more google april fools:

http://www.google.com/googlegulp/
http://www.google.com/romance/
http://www.google.com/mentalplex/
http://www.google.com/jobs/lunar_job.html
http://www.google.com/technology/pigeonrank.html

Something tells me it's an April Fools joke...

edit: Beaten by Joen

I just made a thread about this years other April Fools joke but didn't see this thread.