It’s no secret that Asus wants to get its 8.9-inch lappie to market as quickly as possible and we’re now hearing that the Eee PC 900 will be available in the US on May 12 for $550, according to Wired, which is $50 higher than earlier reports. In order for Asus to get it here by then, it had to forgo using Intel’s new made-for-tiny-laptops Atom processor. But PC World is…