HP only just rolled out its Mini 5103 business netbook earlier this month, but it looks like it might already be set to get an upgrade -- a newly-discovered support document on HP's own site clearly lists the new dual-core Atom N550 processor alongside the current Atom N455 and N475 options. No indication of any other changes beyond that, but this should only just be the beginning of broader rollout for the dual-core CPU -- CNET says it expects a full refresh to hit HP's consumer netbooks