Another option would be to use a website for tracking your exercise. http://fitday.com/ is one example. I'm sure there are tons of others.

Doing a quick search I also found
http://www.traineo.com/
http://www.gimme20.com/
http://www.myfooddiary.com/

Here is a good summary of a bunch of them.
http://www.centernetworks.com/web-2-0-fat-off-challenge

These ones have an iphone version which might work fine on the NIT
http://mynetdiary.com/iphone.do
http://www.gyminee.com/iphone
http://www.ipodfitnesscenter.com/iphone
There are more, too.