Well I was just checking out Famitsu's website and I saw this:(note: the link is entirely in Japanese, but you can still see the prices, etc.)
http://www.famitsu.com/news/201010/25035082.html
They say that Sony will be cutting the PSP Go price from it's current 26,800 yen price tag down to 16,800 starting from Oct. 26th. 16,800 yen is the same price as the PSP 3000.
Using current exchange rates (compared to the US$) that's a change from $332 down to $208 (a $124 price drop).
edit: just saw this on Kotaku:
http://kotaku.com/5672383/pspgos-price-is-slashed-in-us-and-japan
Western retailers have already been knocking $50 off the PSPgo's $249 price tag. Today, Sony made the price-cut official in the U.S. official. The cut for Japan, however, is twice as big.
According to Reuters, the PSPgo will be priced at $199 in the US instead of the previous $249 list price.
After less than a year on the market in Japan, the digital-download-only PSPgo will get a whopping ¥10,000 (US$124) price cut.
Starting on October 26, the PSPgo will retail for ¥16,800 ($208), instead of the ¥26,800 ($332) Sony now charges.
starcraft: "I and every PS3 fanboy alive are waiting for Versus more than FFXIII.
Me since the games were revealed, the fanboys since E3."
Skeeuk: "playstation 3 is the ultimate in gaming acceleration"