I went back through old archives, and... I found a case of affiliate abuse involving inphonic. The email came to a non-existant account, not the one I use with inphonic and it was very similar to the one you got (i.e. links to inphonic pages, but redirects to the affiliate).
This is old (Aug. 2003), but after I had been a customer, and the domains are all still valid (and look bad). Only one is currently listed in SURBLs (noted alongside of it). The involved domains were: myobdeals.com greatoffers.us homebasedbusinessclub.com [jp] imarketoffers.com
I also check, all "real" inphonic emails have come from servers in their own domain with working rDNS and FCrDNS.
I had never noticed this one, because it was to an obvious "bad" account (a misspelling of an account which I sometime post with, so it had both been "scraped" and typo'd - It got on a CD over a year ago, and now is one of the few accounts I outright refuse, instead of just piping down the automatic spam-reporting machinery - too much "mom&pop" operation spam to it).
Anyway, it was two years ago, and I got just one - but it shows they have had past problem (but with just one vs. your > 10, my case was probably cleared up quickly).
Paul Shupak track@plectere.com