Admittedly I am a chronic early adopter, I installed the OS X Public Beta the day it was released, I download nightly builds of Chromium and Camino, and I often participate in formal beta testing. So FWIW, I am using DNScrypt on three Macs all running OS X 10.7.2 and it has been absolutely problem free. There has been one update since I first installed DNScrypt and that was totally uneventful. Whether it is called a technology preview, an alpha release, or a beta — it works. If it makes you nervous all you have to do is UNcheck the "Enable DNSCrypt" box and you are back to unencrypted OpenDNS. UNcheck "Enable OpenDNS" and you are back to whatever DNS servers you were using before. (In my case that would be OpenDNS).
I suspect the main thing we will see in future releases is perhaps some new features and/or options.
