No, I haven't, though that looks interesting. Quick thoughts:

16 GB storage is far, far, far too little. That should be upgradeable. The problem with microSD expansion is vfat. That's crippled on both capacity and permissions. I'd also prefer encryptable removeable media.

Speakers. I want my devices to NOT have them. I'll attach via Bluetooth or a wired headset/mic combo. I'd also prefer cameras be shuttered. That's both for protection (lenses get scratched) and privacy.

Other than that, yes, it's headed the way I'd like things to go.

Erm, meant mics not speakers.

Input devices should be clearly and unambiguously disableable, or external.