Someone on the Indigenous Language and Technology (ILAT) listserv recently inquired about multimedia dictionaries. I checked the Ethnos Project Resources Database to see what was listed and found only a handful of relevant items. We do have a growing list of Indigenous language apps (see this post by Rachael Petersen), but the selection of dictionaries was limited. So, I just finished adding a few more online Indigenous language dictionaries (many of them talking dictionaries) and some more Indigenous language apps to the Resources Database.
As a rule of thumb, I have added only database-driven dictionaries. There are plenty of syllabaries in PDF or tables of words in HTML out there, but I felt the more robust dictionaries were more appropriate to include.
p.s. I have moved the complete listing of Indigenous language apps & online Indigenous language dictionaries to this page in the Ethnos Project Resources Database.