Filed under: LaptopsWhat's better being the nerdy guy on a nerdy hit TV show? Being a nerd in real life, of course. Masi Oka -- you probably know him as Hiro from NBC's Heroes -- has it all going on, and has now signed up to be OLPC's "ambassador" to really flesh out his resume. The guy majored in Math and Comp Sci at Brown University, and did odd acting gigs while working at ILM programming special effects, so he's no pretender to this nerd throne. Masi's role as global ambassador pretty much means he'll be doing some TV spots to "promote the importance of empowering children with learning tool