Filed under: LaptopsASUS's newest, Atom-based 900 series Eee PCs may be fast approaching availability, but it looks like the company is still doing its best to get as many plain old Celeron-based Eee PC 900s out the door as possible, with it now offering up a $100 rebate on the already low-priced laptop. That brings the price down to $449, which is certainly a decent enough bargain compared to the $599 the updated Eee PC 901 will supposedly be going for -- Amazon price mix-ups notwithstanding. From the looks of it, both Amazon and ZaReason are offering in the rebate (good 'til July 31th) at the moment, but w