I've made a new game developed using XNA. I wrote this game for my son who just entered the 1st grade and loves playing with numbers (geek in the making I believe....)
The game is called "Jellies A Plenty" and consists of a little Jelly guy hopping around a board answering simple math questions. Getting an answer right, rewards him with a Jelly Bean, answering a question wrong releases the Shark creature.
Seems to be a hit with my son and making it was relatively simple. Only two days of actual development was needed. XNA continues to just simply amaze me. I've provided the source for people interested and plan on beginning work on tutorials walking through how I made it.