One thing that is yet to be verified for the iPad is whether or not the VoIP apps already in the App Store will work on the device. However, popular iPhone app Truphone has already created an iPad version of their VoIP app that has already been accepted into the iPad App Store. The question still remains about whether or not VoIP calls can be made with the iPad 3G model. Here is a snippet from the press release for Truphone for iPad:

“Analysts estimate that Apple pre-sold more than 150,000 iPads on its first day, with 2010 sales on track to hit 4 million,” said Geraldine Wilson, CEO of Truphone. “Every device includes Wi-Fi, and soon, 3G connectivity. That makes them a natural fit for Truphone, which has a long history of giving the iPod Touch and iPhone a broad range of new options for staying in touch. We’re excited by the opportunity to extend our suite of convenient, dependable, high-quality voice functionality and IM services to iPad owners.”

Here is a link to the full press release via 9to5mac if you’re interested