You can grab a couple of free LeadPad/Leapster apps with the follow delicious LeapFrog discount codes. They've been kicking around for a while, but they're still valid for LeapFrog freebie goodness!
Firstly, use code 5813 0790 4610 4973 for free Alphabet Stew, usually £2.50.
And the fun continues with discount code 5813 1140 1518 1413, which gets you LeapSchool: Book of Super Awesome Stuff, free!
(Thanks to juspsychojo at HUKD)