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Most of the hype surrounding the iPhone 5 display has been centered on its size, with industry observers predicting that Apple will increase the next generation display to 4 inches. New information points to an even more intriguing possibility, that the iPhone 5 will feature Sharp's IGZO display technology in a cutting-edge mobile touchscreen.

The diagram above from Semiconductor Portal illustrates the advantage of IGZO transistors. These indium, gallium, and zinc (IGZO) transistors replace standard amorphous silicon thin-film transistors in the Sharp components, which provide higher electron mobility. This means display pixels can be smaller and more light passes through the IGZO display.

The iPhone 4 has yet to officially launch in Brazil, but photos have already leaked of a locally-made 8 GB iPhone 4 hot off the assembly line. Foxconn has long been rumored to be starting production on the iPhone and iPad at a new factory in Brazil. Photos leaked on Brazilian site MacMagazine show an iPhone 4 with a unique model number and markings.

Also seen on the back of the iPhone is "Indústria Brasileira" instead of the typically seen "Assembled in China" tagline. Below this is the stamp of approval from the official Brazilian communications agency ANATEL. The version of iOS 5 installed on the iPhone describes the model number as "MD198BR" with the BR indicating Brazil.

Apple continually strives to improve the iPhone's picture taking capabilities, and the iPhone 4 and 4S are no different. Maybe the impressive low light capabilities and high resolution photos are not the look some photography buffs enjoy. If the five-element lens in the iPhone 4S is too perfect for your tastes Holga has just the accessory for you.

Now you can transform your iPhone 4 or 4S into a toy camera, Holga style. The SLFT-IP4 iPhone lens filter kit fits like a normal case on your device, but gives you access to nine different retro special effects without using software.

When it comes to smartphone photos taken and posted on popular sharing site Flickr, Apple just surpassed itself again. The iPhone 4S has flown up the ranks to beat the iPhone 3G as the second most popular device to snap photos with on Flickr. This kicks the iPhone 3GS down to third and the Android HTC EVO 4G into fourth place.

The reigning champion of mobile phone image uploads? The iPhone 4 retains its lead in the segment, blowing away the competition. In fact, when it comes to overall camera statistics on Flickr the iPhone 4 also comes in first place, ahead of several digital SLR models. The Canon EOS 5D Mark II and the Nikon D90 follow in second and third place respectively, with the Canon EOS Rebel T2i and Canon EOS 7D following behind.

Users complaints about iPhone 4S SIM card error messages that read "Invalid SIM" and "SIM Failure" have been piling up on the Apple Support forums since the device went on sale in October. The glitch prevents users from using their phones when the SIM card is in the slot.

According to ZDNet this is not a new problem. The Sim card error message is from a design flaw that has affected the iPhone 4 in the past. Sometimes the SIM card causes a short circuit when it makes contact with the tray eject mechanism. The short circuit causes the error making the SIM card unable to connect with the wireless provider. This prevents users from performing the most basic functions like texting or placing phone calls.