In a world of $250 netbooks and credit crunch, is there a place for a high-end ultraportable that, in its peak configuration, costs $4,345? That's the question Sony - and plenty of others - are asking about the new Vaio TT, its latest luxury notebook....

sony vaio tt review: The Vaio TT is billed by Sony as the world's smallest Blu-ray laptop. With noise-cancelling energy-saving technologies, it's designed for business users who want to watch their own movies after the work's done on long international...