Is that "T-mobile Pocket PC Phone Edition" must be

[killercheung]

I saw a T-Moblie Pocket PC Phone Edition (It has a gold case) on sale, the seller said the manual described it is a GSM 900/1800, but as I known it should be a US GSM 900/1900. Is it a GSM 900/1800 version gold case "T-Mobile Pocket PC Phone Edition" avalible?

Thanks and sorry for my bad english