I'm a little late on this but Wii Transfer 2.5 from Riverfold Software is out.
From Manton Reece's post about it:
"""So what's new? Movie streaming is the big one. You can now drag and drop movie files to convert to Flash Video format, which Wii Transfer's web server will happily stream up to your Wii. It works surprisingly well considering the Wii has such limited memory and no hard drive. Last night I even tested with feature-length movies.
Other new features include background music for picture slideshows (both MP3 and AAC) and bookmark sharing, so that you can browse your Safari or Firefox bookmarks on your Wii to easily visit those sites."""
Looks cool for those of us lucky enough to have Wii's.