One step forward, one step back: just as we were getting ready to celebrate Microsoft's decision to remove the three-app limit from Windows 7 Starter Edition, we're hearing that Redmond is still planning to impose strict limits on what types of machines get to run the stripped-down build. Just like today's max XP specs, things are pretty weak all around: Window 7 Starter machines will max out at 10.2-inch screens, 1GB of RAM, 250GB hard drives or 64GB SSDs, and single-core processors under 2GHz. Of course, Microsoft's told us all along that it thinks lots of OEMs will