When using the R4 binaries for hbmenu the R4i Platinum freezes on 'Loading...'.
Since I have a few I will volunteer one with a reasonable guarantee of getting hbmenu to work on it. If this is WinterMute I know already where he lives. Sometime I will buy him that awkward Wii controller

If you don't need the card itself and just the R4i firmware, it's available here: http://www.r4iplat.com/download/r4.html
I didn't think it would be as easy as DLDI patching some files, but this is not my forte.