First off, I absolutely love the .da cursors. Best. Thing. Ever. But, I would love them even more if the included:
1. Some more SHAPE@ keywords (but only if it's faster than getting these properties than using "SHAPE@"
2. An optional "spatial filter" parameter.... A polygon object where only features that were in or overlapped the spatial filter would be ruturned by the cursor. Honestly, I would be happy if it used just a rectangualr extent object. I can emulate this using SelectByLocation, but it seems it would be way faster/better if this could be handled as an optional parameter directly in the cursor.