They could add something useful instead of these ROM fixes. I mean, how many people play Miami Nights?! And why do people care about Puppy Palace? Something like a password protection feature, a better interface on the Games browser or something that improves it at a larger scale would be a lot better. I guess they gave up because R4s sell like hot cakes. Once the sales drop, they'll probably do something.
I don't actually care about either of those games myself, it's just the principle of the thing. You know, 100% compatibility? As of now, Poopy Palace is the only non-working game on the R4. They should have at least fixed both non-working games in the update. I'm sure it was just an oversight on their part.
I've long since forgotten about them adding any more features. I believe many of the features of the other cards aren't possible on the R4 because it doesn't have any onboard flashable memory. When you think about it, it's pretty damn amazing what they have done with it thus far with just a software loader.
One thing no one can argue with about the R4 though, it does what it can do very well. I have never been happier with anything I've bought for my DS than the R4. It may not be the best cart out there anymore, but it still does what it was designed to do and the R4 Team still supports it. That's good enough for me.