It's just schedule adjustment, this means they can start an AP at Gencon 2008 (good idea), it also means that next year when Pathfinder RPG debuts in Gencon 2009, they can release an AP that uses those rules simultaneously, rather than being one month off.
Keep in mind though that doing it this way actually helped most Paizo subscribers (those that want to keep their subscription)
People who didn't want to receive 3rd AP said so in the Paizo boards and were accommodated.
When there is something going on at Paizo, just reading the general product discussion or the customer service boards gives you a good indication of what the fix will be, when it will come or how you can deal with the problem. I recommend it.