Oh, could Arrandale use Thunderbolt?
I was expecting the Intel Z68 Express chip, but seeing the huge SSD in the iMac made that format seem cost prohibitive in a Mini.
Although I'm tired of waiting (it's been a long time; this will be my first Mac), the Mini released simultaneously with Lion makes sense because Snow Leopard Server software won't exist as an incentive to buy the server model.
Because server function will be in Lion, the cost benefit will be diminished for the upgrade Mini.
Maybe the extra money could go toward a quad-core Sandy Bridge chip with a dedicated GPU (unlikely), or a small size SDD cache to accompany the 1 TB drive.