I saw the 8520 on display/for sale at the Wal*Mart in Hanover, MD this evening! They had black and silver both displayed as dummy phones. Wasn't able to try the newfangled "optical trackpad" thing because A) the phones were non-functional dummy phones, and B) they were locked up under glass.

Gonna have to check a corporate-owned store soon and see if they have a live display sample.