To quote: "The PSP Go may still not be available to the general public just yet, but the folks at LevelUp.cn have somehow managed to wrangle one out of Sony's hands, and have promptly gone and done what appears to be the first proper disassembly of the device.
Courtesy of Engadget, Ben Heck has recently dissected a Microsoft XBox 360 Jasper console and says that checking the amperage rating near the barcode (you can see through the hole in the packaging) is the most sure-fire way to find a Jasper to date.
In summary, if it says 14.2 amps it's a Falcon unit (65nm CPU, 90nm GPU), 12.1 amps makes it a Jasper unit (65nm CPU, 65nm GPU).