dual-core Atom for netbooks back at Computex, and now it's making good on its promise with the ready-to-ship Atom N550. The chip operates at 1.5GHz, with 1MB of cache and support for DDR3 memory, and "similar" battery life to the Atom N450. Intel is billing it as a more "responsive" experience, which will make sense as a selling point to anyone who has attempted any serious multitasking on a netbook. YouTube and Hulu also get first paragraph billing in Intel's press release, and we'll be happy to test out those claims once we get our hands on a netbook with the N550 under the hood. Unfortunately, while Intel claims that netbooks based on the processor are available "in stores today," we don't know of any shipping just yet -- naturally, we have our eyes peeled. MSI and Lenovo actually denied plans for the chip to us, despite their inclusion in Intel's PR, but we do know the upcoming ASUS 1015N (which is also packing NVIDIA ION graphics) will pack the N550 when it hits. Hardly a landslide so far, but we're sure we'll eventually see enough N550 to be sick of it, in traditional netbook fashion. In semi-related news, Intel is also proud to announce that it's shipped over 70 million Atom netbook chips since it started on this crazy ultraportable journey back in 2008. PR is after the break.