+100, I've been on the verge of writing something like this for months now. I dunno about Windows and OS X, but Linux doesn't have any native clients. I've been using https://github.com/agirbal/JMongoBrowser for my desktop mongodb query/admin/CRUD stuff, but it's horribly non-native, slow, a memory hog, and the interface is really lacking. But it does work and is pretty feature-rich.

MongoAdmin looks exactly like what I want, and I have a lot of experience with both django and bootstrap, so I'm especially happy that I'll be able to navigate my way below the surface without much issue.

Great work, thank you!