According to techcrunch.com, a new Israeli company, Fring, is to offer a native VoIP application for the Apple iPhone. Making this particularly interesting is that techcrunch.com reports that Fring will be using the iPhone ‘Jailbreak’ unlocking tool to get around Apple’s platform lockdown.

Fring appears to already provide their product for most other smartphone platforms.

Internet telephony company JAJAH is creating a native voice over IP application for the iPhone to be released later this year.

No word yet as to whether the JAJAH offering will allow the iPhone to utilise VoIP while also using other applications - a sticky point for Apple as the SDK does not directly allow for multitasking of ‘third-party’ applications.

The JAJAH native iPhone VoIP application is expected this summer.

iPhone users hoping to use Voice Over IP applications via the new SDK (Software Development Kit) may be in for some disappointment as it emerged that the SDK will only allow one application to run concurrently.

Seemingly, if you had a VoIP app running ‘listening’ for incoming calls over the network, you wouldn’t be able to use any other applications on the phone.

More details at gizmodo.