AT&T just added a pair of Windows 7 Starter netbooks to its stable, and while we've got nothing against the Samsung Go and the Acer Aspire One, we just can't help but feel preloading 7 Starter makes the already-dubious subsidized netbook value proposition even worse. Let's break it down: both the Go and the Aspire One will set you back $199 upfront (well, after mail-in rebate), and then you're on the hook for two-year data contract, which will cost you either $35 a month for a 200MB cap or $60 a month for a 5GB cap. Now, $35 a month for 200MB of data is basically worthless for a netbook -- that's what, a half-d