Flashcarts and Legit Games on DSi

I have a DSi and an R4i, and the R4i works just fine on it, but I got a real SoulSilver copy because of impatience and I wanted to try out the Pokewalker thing. I'm wondering if there's any way I can use the R4i to get stuff on my legit SoulSilver copy without a second DS or anything?