Also, to clarify, what I thought was the worst thing about this entire post is that not only do you believe that Tatsunoko vs. Capcom would sell better on the PSN (which it most likely wouldn't and even if it somehow magically would, that would be at a massive loss of revenue compared to each sale on the Wii due to the price difference), you actually believe it'll sell 300k-500k first week.
Soul Calibur IV and Tekken 6 only barely managed to scrape by 300k first week on the PS3 and they were not only made for the console in question, sold on retail (retail sells more than downloadable, generally), they were also an entry in a main series.
Hell, Street Fighter IV managed 500k units first week on the PS3, and you expect a port of Tatsunoko vs. Capcom to equal those first week sales? I mean, come on man. I'm sorry to say it, but you're either joking or you're delusional.