a few observations
1. Western Union is a big no no. used by scammers most of the time.
2. the company is a malaysian company (Sdn Bhd means Pte Ltd). have a look here http://www.gtek.com.tw/en/contact.php?mw=4&design=4 and you will see the malaysian contact information.
3. in the 4th picture it shows AT&T as the carrier. no way is this the phone that they have in malaysia since AT&T doesn't exist in m'sia. so those pics are probably stolen from another site.
4. if you download any of the images they posted to you (i used the 3rd one), and do a google image search, you will see this image is not unique to them. they took images from other websites.
5. save yourself the cash and buy a N900 or you can try reverse scamming them. :P