IACAS  Cyndicate will not accept your PulpFiction license key, no. PulpFiction users will likely get a discount - we've yet to decide how much. We will decide before the demo's 21 days pass.

Cyndicate uses none of PulpFiction's assets - code, icons, etc. Naturally there is a resemblance, as the people behind it are the same, and it follows the same model.

As for stylesheets, Cyndicate switched up the model a bit. You can visit http://forums.cynicalpeak.com/viewtopic.php?id=196 to find out how to make compatible stylesheets for Cyndicate - it should be relatively easy to convert your PF stylesheet. However, it sounds like the feature you're looking for is one for which you don't need a stylesheet at all (and didn't in PF either) - you simply set all of your subscriptions to display the "permalink content" rather than the "feed content" and the website will load in the article viewer. You can toggle this at any time, per-article, with cmd-D.  
(Version 1.0.1)

IACAS  This is Erik, and I asked Joel to remove this commentary entirely because it has nothing to do with the product itself. Joel refused to remove the commentary, as is his right, and so that's done.

All things considered, the development of the icon is an incredibly small part of the process, and while true that I could have handled things more smoothly, I did not like being put in the position of having a contract broken. It set us back quite awhile and cost us time and effort to find a new icon designer.  
(Version 1.0.1)

IACAS  Needs an update for Intel Macs!  
(Version 2.0)

IACAS  For filters, we offer PulpFiction (the non-Lite version). :-)  
(Version 1.0.2)

IACAS  We've released 1.0.1 betas in the past few weeks, and if you look at the changelog from 1.0, you'll see that we've fixed quite a number of things.

http://nslog.com/archives/2004/06/22/pf101b1.php  
(Version 1.0)