OK, so MR has posted a news item on Intel demoing new 45nm Penryn laptop chips, ready before the end of this year. ... a few improvements. - 45 nm - lower heat - better battery life - SSE4 - quad core (possibly 8-core?) Great news to those waiting, like myself who's still using an old, slow 2004 PowerBook. But given the delays in going from 90nm to 65nm, it might be possible the transition to 45nm could prove troublesome for the chipmaker. Should I buy a MacBook now, or should I wait for Penryn?