Sure is, but they got "bought" out by Apple, so I wonder if they will be linking it somehow with ATV3 / or their new apparent TV sets.
I feel that Apple could really be in with the home entertainment, but they need to do a couple things which won't happen;
1) Allow to play multiple formats
2) Stream of a NAS device
Shame the ATV2 doesn't quite cut it, without jail breaking it, even then it's not ideal.
No idea where you heard that but they haven't been bought by Apple.
Plex is going to be shipped inside the new LG sets, but that's it. Plex continues as a stand alone program no problem at all.