This site has been mentioned about 3 months ago, but as its Easter Sunday there are many apps being given away for a limited time only. I figured this would be a good reminder. The site gives you an update on all the ones available free tha you most probably had to pay for yesterday. If you go to "previous day" there may also be some free apps that are not expired.
iPhone and iPod Touch owners, go check it out! Some cool apps available