Since Apple’s iPad 2 Dock apparently isn’t yet widely available - ours arrived early this week - developers have asked us for measurements of the noticeably larger sequel to the original iPad Dock, so they can consider whether to prepare Dock-compatible accessories. So here they are, with a few other observations ahead of our full review. Original iPad Dock was 2 27/32” wide. iPad 2 Dock is 3 11/32” wide. Original iPad…