GBrainy for OLPC v0.50

Hi everyone, my little contribution to the OLPC and Mono is not finished yet, so in the last days I tried to port the new version of GBrainy to the OLPC Device. GBrainy is so nice that the OLPC version needs to be updated. You can find it here. The original web page can be found here. Thanks to Jordy Mas for the original code.