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I have the protection pack from marware on my MBP. You can get the protection pack plus which includes a cover for your trackpad. http://www.marware.com/PRODUCTS/MacBook-Pro

+1. I've had the trackpad and wrist area protection on since i've gotten my machine, but after about 2 weeks of usage, its been tethered to a desk for about 2 months. I think i'm going to take it off just to see if it leaves any discoloration (although my screen hasn't been open for those two months).
 
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