In the US, the Samsung Go (which is called the Samsung N310 in every other corner of the planet), has your basic netbook specs including a 1.6GHz Intel Atom N270 processor, 802.11b/g WiFi, and a 6 cell battery. But it turns out the version on sale in Singapore is a little more powerful, thanks to a 1.66GHz Intel Atom N280 processor. The Singapore version also has 802.11b/g/draft-n WiFi.
All told, most folks probably won’t see a huge difference in performance. And if you have an 802.11n network in your home, it’d probably be cheaper to pick up a USB 802.11n adapter than to order the Singapore model and ship it overseas. But it’s interesting to see that the configuration varies slightly from country to country.