Several differences between the Verizon and AT&T iPhone 4 have already been revealed, including changes in the antenna design and other components. What might surprise some people are actual differences in calling capabilities between the two devices. It's not clear whether or not these differences in functionality are due to Verizon's network technology or some other reason, however business users will especially be interested in these calling limitations.

Unlike the AT&T iPhone 4 pictured at left, the Verizon iPhone 4 doesn't allow users to swap between calls on hold when adding calls to a conference. In fact, both calls pictured here are simultaneously connected and must be hung up together on the Verizon iPhone. In contrast, the AT&T user can switch between calls or join them together to create a conference call.

Just the other day, Bloomberg reported on the long-anticipated iPhone nano, a smaller iPhone in the works at Apple. Now the Wall Street Journal has confirmed that such a device is in development and should see release this summer. According to the report, the smaller iPhone will be around half the size of the current iPhone 4.

Patents for a mini-iPhone first surfaced almost four years ago, and since then Apple executives have discouraged rumors that a smaller smartphone is under development. Sources speaking to the Wall Street Journal claim to have seen a prototype device, dubbed the N97.

Chronic Dev Team has released GreenPois0n RC6 for Mac OS X and Windows. Untethered jailbreaking is now possible on all recent iOS devices including the iPhone 3GS, iPhone 4 and Verizon iPhone 4. GreenPois0n RC6 has added support for Apple TV and doesn't require any saved SHSH blobs. And did we mention that it's untethered?

Jailbreaking an updated AT&T or Verizon iPhone is now an easy process thanks to Chronic Dev Team. The software packages for Mac OS X and Windows can be downloaded directly from greenpois0n.com with a Linux version in the works. With a jailbroken device, users can install and use a variety of apps from independent developers using the Cydia app installer. For those new to the scene, rest assured that iPhone jailbreaking has been declared legal here in the US.

Nobody can seem to get enough of the iPhone nano. Ever since the first news of a mini-iPhone patent surfaced almost four years ago, the concept refuses to disappear for more than a few months at a time. Now Bloomberg cites sources within Apple who say the smaller handset is indeed in the works.

According to the report, prototypes of the iPhone nano exist and have been considered as a way for Apple to increase competition against popular, cheaper Android devices. By using current-generation components Apple could reduce manufacturing costs on a new handset coming in at two-thirds the size of a normal iPhone.

If you're a regular iPhoneFAQ reader, this won't be the first time you've heard us advise you against buying iPhone or other mobile phone insurance through your wireless provider. When AT&T began offering iPhone insurance, we demonstrated how overpriced and undervalued their policy offerings were, hopefully saving many of you a great deal of money and frustration. Since the Verizon iPhone was announced, we've been waiting to find out what Verizon was going to step up to the plate with on the insurance front, hoping we'd be impressed. Unsurprisingly enough, we're not.

Hoping for anything else was sort of pointless given that Verizon and AT&T both offer insurance through the same third party company, Asurion. While the coverage that Asurion offers is excellent, the pricing is anything but. So, even though the same wizard is behind the curtain at both AT&T and Verizon and not ignoring the fact that replacement costs to the consumer are roughly $50 higher with the CDMA iPhone, we were hoping we'd see Verizon pushing aggressive pricing for insurance to give AT&T iPhone owners more reasons to switch.