Head over to AppRedeem.com on your iPod, iPhone, and iPad and sign up for appredeem! If you use my username (Moto2011), you get a free 25 points! 50 Points = 50 cents! This does work with installous, but only for some apps. I'm not sure why.

Tutorial on using with installous (You need a device with multitasking enabled):
1) Download your app in installous (DO NOT INSTALL YET)
2) Click on "Get App" on AppRedeem (this will take you to the App Store).
3) Double click home and go to installous.
4) Install your app.
5) Go back to the app store and verify that it says "installed" where the price usually is.
6) Return to your home screen, and just use the app for a few minutes.
7) Go back to app redeem and you should have your points!

You will need a verified paypal for this. If you do not have one, google "Verify PayPal with Etrade". That worked for me.

Here's some proof that it works.