Miiverse is now available on web browsers, albeit with limited functionality. The service is currently in beta and cannot reply to threads at this moment, but should be able to at a later date. To view Miiverst on a browser, a Nintendo Network ID will need to be created on a Wii U if you haven’t done so yet. Also Nintendo is planning on bringing Miiverse to the 3DS sometime later this year.
Ben
This will be VERY CONVENIENT! I think I’ll be accessing Miiverse via my computer way more often than on my WiiU.