100 push ups?

Has anyone out there tried the 100 push ups program?  And if so, would you recommend it to others?  I was going to give it a try and thought that if anyone wanted to try it at the same time, it might be fun to compare notes.  If you don't know what I am talking about, go to http://hundredpushups.com/ and check it out. 

I have done this program, but didn't complete it.  I probably could have if I stuck with it but I cracked with frustration when I ended up being off exercise from injury.  I'd recommend it because I did notice more of a burn working with it then I do just doing regular pushups, untimed until I hit that 'fail' point and can't do another.  I really should go back and give it another go. 

snow_fence is doing it. shes in my "friends journals" if you wanna look her up. she's doin a 100 pushups challenge actually.