The R4DS guys just released a new firmware several days ago, making the latest version number as v1.15. There's nothing much to shout about, except that it fixes the problem relating to Luxor: Pharaoh's Challenge. Not a problem to me, because I always buy original (check out my collection here).
I was expecting SDHC support but looks like R4DS users will have to wait. Click here to download the latest R4DS firmware.