"Ooh, look. Buffy!" Generally it is hard to get my partner interested in my iPhone and iPad. Like all gadget widows, I imagine, she has framed my collection of mobile devices as the enemy -- diversions that pull me away from attending to her during every waking moment. But she has discovered Hulu Plus on my iPhone and iPad and is marveling at their deep library of episodes of "the best thing ever put on TV," she insists. That is where Hulu Plus, even at $10 a month, first impresses.