Meh, I see the two worlds as being seperate with rules as diverse as Palladium vs White Wolf vs 3.5... Pathfinder is a great product. Pathfinder RPG is going to be, IMO a new ruleset and will be as unique as World of Warcraft and Guild Wars are to Final Fantasy 11.
If The PTB here want to make a 4E product, I'll look into it because I will be expecting the same quality and concern as I get from their previous works. I got Dungeon Mag for tips on being a DM. As a newbie DM I need as much as I can get.
Pathfinder, for my needs, is a product that I can stand behind as a suppliment, a completely new ruleset or as a ccg for frak sake. When we get right down to it, the product is worth the sub because it teaches me.
$E (no not a typo) is going to get my attention and is going to take some of my time away from Pathfinder, but that's the same as my love affair with all things FASA and the d20 system. If it's good, I'll use it. If not, I won't pay.
Those people who are complaining about Pathfinder not being $E are looking at the wrong picture. The correct question is, will $E have me excited enough to take time out of my current routine?
So, when you stop to complain, just think of this... Paizo could have said "chuck it all, we're reimagining Star Frontiers."
... Actually that could work.