No, but there never has been a stable build for CM7 or CM9 either.
"Stable" is a special term used for releases that means everything works. It's been close to beta in CM7 and CM9, but that's it.
Right now CM10 is called a "preview", meaning it's not even in beta test status yet and it's recommended for experienced installers (some risk is expected). It's a work in progress.
In order of quality, you'll usually see this:
preview (very similar to alpha)
alpha
beta
release candidate (or RC)
stable
Some past builds were named "full-of-bugs" and "not-yet-ready". This build is named
cm-10-20121216-EXPERIMENTAL-tenderloin-FOR_LIMITED_TESTING_ONLY_CAM.zip if that tells you more.
"Cam" referring to the addition of the camera fixes. You can find all of jc's releases here:
Goo.im Downloads - Browsing preview
Now that the lesson is over... is it a good build and most everything works? Yes. I have it on both my Touchpads and think it's as good as CM9, some say even better. Nightly builds are expected soon. It's possible there are some issues with some apps, but I haven't noticed any thing. Make sure you have the latest recovery, make a backup and install it with acme3 and use the recommended stock gApps.
FWIW, I prefer the guide at Rootzwiki:
How to install jcsullins CM10 Unofficial Build 20121216, with Sound, Camera & Microphone, Updated 1/12/2013 Roland does a much better guide and I know that's up to date. (Many more Touchpad developers are on Rootzwiki.) XDA is best for other devices, like the Nook Color tho.