I got it when it first came out and don't remember 7.0 as well for a comparison for CS. The Filters and effects are a little bit easier to work with but I don't see any real earth shaking changes in it over 7.0, I think it is designed to work better with other "CS" programs in the creativity suite series. If all I had was 7.0, I would not be in a hurry to replace it
If your really into photoshop, you might consider it. If you just dabble in it, no point.
As for me, it has awesome unparallel integration with other adobe apps especially premiere and after effects and golive, so if you use those, its a must-buy.
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