Great, now I'm going to go crazy scanning things. When I beat the game, I hope to do a no-scan play-through. Personally, my least favorite thing to do is all the scanning. To me, it takes away from the atmosphere to have to stop in the middle of what you're doing, scan an enemy, and then go back to killing. I do like it for hints on the area, though. I guess in a way, I'd like it to be more like the X-Ray Scope from Super Metroid.
Well, can someone tell me what all the scans unlock? Or portions of scans? Are they for those points you can spend on bonus material?