Is there a difference between the Sony Ericsson W910 and the W910i and if so,

what is the difference? I've seen this phone advertised on eBay, and I was wondering if there's a difference between the W910 and w910i? Also, is the W910i sold in Hong Kong different to the W910i sold in Australia? The one in Hong Kong seems to be $100 cheaper
Thanks.
 
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