As you know, Windows 7 pre-orders begin today (unless you're lucky enough to be in Europe, that is). This of course begs the question: what is a Win7-aspiring netbook owner to do? External optical drives are pretty kludgey, in our estimation, and trip to the Geek Squad? Out of the question. According to CNET, a "source" of some sort is goin' around saying that Microsoft is planning on making the OS available on USB thumb drives for the ultra-portable market, although we feel that such devices are best left to the college students who rely on campus computer labs -- or the occasional J.Lo album. As for Microsoft, they've said nothing about any of this, although we have noticed that its online store has all three upgrades (Home Premium, Professional, and Ultimate) available for pre-order download (at $49.99, $99.99, and $219.99 respectively). Problem solved, right?