There are lots of interesting tidbits floating around the Apple-focused blogosphere lately — Apple quietly updated its low-end white MacBook, upstart Mac cloner Psystar filed for bankruptcy, and Steve Wozniak reportedly spoke on the phone to Steve Jobs, who apparently sounded “energetic.” Not surprisingly, though, some of the most interesting news revolves around mobile action: AT&T’s network upgrade plans; the Palm Pre reportedly syncing with iTunes; and the not-yet-released Zune HD’s sweet touchscreen.