If we're going to spend $599 on a phone for our phone, it needs to offer unparalleled audio quality, absolutely seamless device integration, and a drop-dead gorgeous design. Invoxia, a new entrant to the world of VoIP telephony, claims to have created just that, with its NVX 610. The desktop unit uses an iPhone (or iPod touch or iPad) app as its control interface -- the hardware itself includes only touch-sensitive volume, mute, speakerphone, and voicemail keys. With the exception of accessing your iOS device's address book, however, all of the phone's hardware is self-contained. Calls are processed using the built-in ARM Cortex-A8 processor, and can be made via Skype or any third-party SIP. You can also take incoming iPhone calls using the handset or speakerphone, but all outgoing calls are processed using VoIP, not your iPhone's mobile network. We took a peek at the NVX 610 at IFA, and definitely liked what we saw. Jump past the break for our initial impressions, and a (somewhat noisy) intro video from Invoxia CEO Serge Renouard.