I (as stated many times on TMO) used to have N900 device which was "Made in Finland" like the one from your link. It was refurbished device from China, it was genuine of course, but with "reinforced" (my a**) USB port, many talk time hours on the clock, and the screen was dead after few months (if not faster). This one might be the same, worse, or better - you'll never know before You buy.
Some time ago on eBay in UK I saw brand new N900 in box with papers for 200£, and that is the price of real new one. Did sell mine (brand new as well) for 200€ (which I regred till now, I should leve it with me), so now You can see the diference in pricing.

Leave an thread in Buy/Sell, AFAIK there are good few lads here with more then one BNIB N900's on TMO. Who knows, maybe one will be short on cash.

Good luck.