Some of you may know of the infamous "R4" site that releases flashcarts and within six months stops updating and releasing new ones. I am not sure if that's about to change but they have added a forum and seems to be updating all R4i flashcarts to run on latest 3ds and DSi firmware. They actually seem to be making an effort to satisfy customers and not rob them. The kernels themselves are no longer updated but i must say i have the R4i SDHC RTS(kernel no longer updated) and it has not had any problems in running an game i've tried so far. They also have ds roms themselves on the forum and have tutorials of making custom firmwares for certain carts. If i may make an opinion i must say i believe this "R4" team is the old M3 team as their flashcarts are clones of the M3 and able to run M3-intended firmware like Wood R4 for M3 and others.