Well, MENUdo Install seems pretty easy to implement. As for Moonshell+Romloading, I'd have to track down each DLDI file for each flashcart. Actually getting the DLDItool is easy. A similar reason is why not all R4 clones that retrogamefan's can support are supported in FlashcartHelper. If someone is observant, they might have noticed that all the R4 Clones that need to keep their original kernel aren't supported in FlashcartHelper YET. Soon, I'll track them down, upload to filetrip if not already, and add support for that. It'll just have to take a while.