This year's Samsung entry level LED backlit TV's (including the model referenced by the OP) have edge backlighting, which allows for a slimmer profile but not for local dimming, which was the feature that gave LED TV's such impressive black levels. Personally I would rather have the more even backlighting of thicker conventional model (including Samsung's excellent mid-grade 2009 CCFL lineup) than an edge backlit superslim one.

However, this model (and most of Samsung '09 lineup) does have substantially lower power consumption than last year's, which is all the buzz in East Asia, especially Japan, nowadays.