Has anyone seen this? DIY hi capacity battery for T600. I guess it will void the warranty.

http://www.gethightech.com/Merchant2...Category_Code=

Palm Treo 600 Hi Capacity Battery - 2000mAh
DIY Internal Battery for the Treo 600 Series Units
3.7v - 2000mAh
This will not increase the weight of the Treo unit