SkyMobius
SkyMobius is the maker of a nifty little application called Vtok for ...
- Google Talk video and voice calls to all your Google contacts over Wi-Fi, 3G and 4G/LTE.
- Google Talk text chat with location sharing, emoticons and customizable themes.
- Send/receive free phone calls and texts via Google Voice.
Available on the iPhone
Requirements: Compatible with iPhone, iPad and iPod touch. Requires iPhone OS 4.0 or later.