Just to give all you chiptuners a heads up that Kitsch has got an awesome new product on his webshop:
http://store.kitsch-bent.com/product/se ith-sd-mmc
Just ordered mine a minute ago can't wait to get it.
The original creator of this cartridge is Krikzz: http://www.krikzz.com/
The reason why i'm posting this is that in order to get one of these cartidge directly you used to have to do a wired bank transfer to Krikzz himself (which is a bit of a pain to some people like me). However now its available on Kitsch's website where you can use paypal to get your hands on one of these cartridges.