Oh, I see that it now stands for "professional web", not for the country of Palau.  Poor Palausians lost their TLD to a bunch of investors.

I wouldn't buy just for any SEO value a direct match .pw domain might have 'cause it won't have much. If you're buying it for your main site, because it matches your company name, you're still better off going with a dot com or dot net. unless, maybe, you live there--which apparently only about 21K people do.