There is currently a petition to port/make Resident Evil 5 for Wii. So far there is about 8000 Signatures and counting. Please sign it if you want Resident Evil 5 for Wii. Also, Capcom does listen:
"A couple weeks ago we heard that the PSP crowd wants a Resident Evil on their platform, and thanks to a petition, Capcom has taken notice."
Link for Petition: http://www.petitiononline.com/mod_pe...ed.cgi?WiiRes5
Source of PSP story: http://gonintendo.com/?p=24207#comments