In case you missed it in our PSPgo review, iFixit performed one of their notorious teardown on the handheld. The biggest news is that the Go's battery is tucked under a warranty-voiding sticker. Other tidbits:
• You can dissect the Go with a standard Phillips #0
• Sony still uses 802.11b Wi-Fi
• Battery not soldered to board
• No metal framework (the structural integrity relies on outer plastic shell)
• Sony processor, Samsung's 16GB of flash storage (in case you cared)
Even though iFixit is pretty positive you can slide the battery out and leave the sticker intact, it's pretty lousy for Sony to hide a component that will need not-so eventual replacing under a warranty-voiding seal. Also, the lack of an internal framework (or much real metal) matches our impressions of the Go's somewhat flimsy, plastic feel.
Couple these two points and add a sliding mechanism, and it's hard to imagine how well a Go will hold up two to three years down the line. Then again, Sony is probably banking on you replacing the Go with another new product by then anyway, just like every other CE company. [iFixit]