I haven't heard anything about the official update being out. My VZW Pre 2 is already meta-doctored to 2.1 and the system updates app just searches endlessly for me. So I can't verify if it's out for real.
I got one of those about 2 weeks after firing up my Sprint Pre2 & it was fine; no problems with updating it OTA. http://m.forums.precentral.net/general-webos-chat/281390-sprint-frankenpre2-ota-update-2-1-last-night.html