miihub.com is for sale, along with the other mii related domains, accepting offer starting at a low $6500 USD. You will get the source code for miihub.com and the database dump and a whole bunch of valuable domains (15 domains in total), like miimaps.com, miihub.com, miivideos.com, miiphone.com, miidata.com (see full list below)

MAPMII.COM, MEETMII.COM, MIIBAR.COM, MIICAM.COM, MIIDATA.COM, MIIDEAL.COM, MIIDEALS.COM, MIIHUB.COM, MIIMAP.COM, MIIMAPS.COM, MIIPHONE.COM, MIIREGISTRY.COM, MIITALK.COM, MIIVIDEO.COM, MIIVIDEOS.COM

There are many possibilities for these domain names, I just haven't had enough time to work on them, buy them all as a bunch.
e.g.
miihub.com - central location for mii related sites.
miivideos - share videos of mii characters, or some video conference application.
miiphone - a phone book for your mii contacts, or some VOIP application.
miimaps.com - place your mii characters on a map.
miidata.com - mii character data repository.

Please contact me at support@jimhoyd.com