LIke most others I think this is great news. It's no guarantee that LG will finally release a webos tv but because of LG's resources, lack of smart tv competititors (google tv has gone nowhere), it is a strong possibility. Remember LG makes lots of stuff including washing machines and refrigerators as well as smart phones. LG hasn't done well with android in terms of market share so why not try a new approach (unlike samsung which is dominating android right now).
I hope there is a trickle down of apps to open webOS. But while open webos is open, what Gram does for LG and other consultees may not be. I can't imagine LG wants to pay Gram to develop apps and then just hand it to other tv players. What do you think? Will there be proprietary stuff that will not be open source?