If you're concerned about the future obsolescence of your miniscule Atom-based nettop, chances are its choice of optical storage is not what's bothering you. But, if that's what keeps you up at nights, Onkyo's P3 is your Ambien. Its ION platform sports the usual 1.6GHz Atom 230 proc, 2GB of memory, and 160GB hard drive. The DVD-ROM is a separate module that clips into a groove on the side and, while details are slim, that doesn't look like a standard form-factor to us, so if a Blu-ray upgrade or the like ever surfaces don't expect it to be cheap. The P3 itself (pictured again below with an LCD friend) isn't exactly a bargain to start, with an estimated MSRP of ¥69,800 (about $770) when it ships in March of next year. That's the price you pay for modular design.