Most of the CM10.1 releases we talk about are unofficial. That’s to be expected, as most of these releases are alphas, pre-alphas, or preview builds that don’t really run well, but show that work is being done. When it’s official, it’s usually more stable. Now, there are official CM10.1 builds out for the Nexus 7 and the Samsung Galaxy Tab 2 7.0.
The Nexus 7 release was posted by XDA Forum Member eak1080. As is to be expected for vanilla Android devices, it’s pretty much ready to go. There are a few quirks that are easy to get around. For instance, the GooManager app doesn’t link to the proper GApps. So if you plan on flashing, use the ones linked. There are also separate zips for superuser and Picasa sync. Also, of course, there is the change in SD card path to /mnt/shell/emulated/. Otherwise, the ROM is perfectly stable and daily driver-ready. So if you’ve been waiting for official CM10.1 before flashing to Android 4.2, it’s ready to go.
The Samsung Galaxy Tab 2 7.0 official was posted by XDA Recognized Developer noobnl. While it is mostly stable, there are a few issues plaguing users. Some have reported that the camera isn’t working properly, and some are also having problems mounting the SD card. However, the ROM has come a long way since its initial release a few weeks ago.