For Nokia, WiFi and VoIP have seemingly gone hand-in-hand for as long as 802.11 radios have been offered in S60 handsets. It makes sense, of course -- the internet is a great way to yap at little or no expense compared to plain old cellular voice minutes when a traditional WiFi hotspot is available, and Nokia was really ahead of the curve with jumping on the bandwagon and making sure that the capability has been available out of the box. Unfortunately, it looks like constant carrier pressure may have finally gotten the better of Espoo, with GigaOM confirming that 3rd Edition Feature Pack 2 doesn't contain a SIP stack built-in the same way that FP1 historically has. That doesn't mean VoIP products are totally locked out, but it does mean that apps that rely on the native stack are out of luck until they've implemented a new stack of their own. Products like the N78 and N96 are affected by the buffoonery, while the E71, which uses FP1, is not -- a good thing, considering the corporate affinity for VoIP and the Eseries' business leanings.
[Via jkOnTheRun, thanks BFish]