like a couple of you are saying, the only thing that gives this goofy .mobi domain anymore steam than the .biz's and .name's and .pro's of the world is that its backed by all these big companies, i highly doubt they will just sit back and say "welp, lets see how that damn .mobi whale does by itself..swim mobi swim!"
this definitely doesnt ensure its success, but at the same time it makes it harder for .mobi to be a *complete* flop... at least in the near future.. what long term holds for the whale is anyones guess tho.