Thanks! 

Armory is now a company, and we have a few full-time devs.  I still do the "feature innovation" like multi-sig, which I've been anxious to do for months/years and have already implemented six times over in my head.  When my current "vision" for Armory is complete, then I'll let some of the other guys do fun stuff like this    Plus, it's no small task to learn the subtleties of Bitcoin the way that is needed to implement things like this securely/properly. 

So yeah, all the multisig stuff I'm doing myself, with the others helping out, doing code reviews, fixing bugs and generally learning about what I implemented.  But they are covering the other parts of project so I can focus on my vision, such as armoryd, blockchain engine upgrades, better testing frameworks, etc.

Speaking of that, one of the big things for this release is a much more featureful armoryd.  It's not complete yet, so I won't call for testing, but it will be by the time we release 0.92-multisig, and will feature multi-wallet, multi-sig, and have a full suite of unit/functional tests.  PM me if you'd like to discuss how you could contribute.  We'd love to get more testing resources, especially if there's some security background involved!

As for testnet on OSX:  should be no problem.  You'll have to run it from the command line and use "--args" as the first CLI arg, otherwise OSX doesn't pass them along.  I believe it would look something like