The persisting rumor that iPhone 5 will have an edge-to-edge display, a feature reviled by die-hard Apple fans, has got more credibility with another leak showing a device with an extended display.

An iPhone screenshot revealed by Nuance Technologies shows a device appearing to have an edge-to-edge screen.

If true, this underlines earlier reports that Apple was spending an amazing $4 billion on some display technology for the nee iPhone which would facilitate a much larger display on the same encasement.

The nextiphonenews said it could not be confirmed if purported edge-to-edge iPhone is a genuine gadget or just the work of a Photoshop fan. One of the devices in the screenshot evidently looks like an iiPhone 4, the report says.

SpeechTrans, the speech recognition software was developed by Nuance Technologies. There is talk that iPhone 5 will have speech recognition capabilities. Nuance could be the company to supply the software to Apple for use in its products, it is said.

In March, iDealsChina showed in its website what it said was a leaked image of the iPhone 5 phone. The handset's screen looked larger and the hardware was bigger overall.

We just got what appears to be mold engineering drawings for iPhone 5. These would be used by case designers to create plastic, TPU, aluminum, silicone and leather cases. A while back we hear rumors that iPhone 5 would have a curved back but these images show iPhone 5 with the same form factor as iPhone 4 but with an edge to edge screen, the site said.

An image published by a Chinese reseller of Apple parts showed what looked like the digitizer panel of iPhone 5. If the image is authentic then the new iPhone will have a 4 inch display but within the same encasement, made possible by a technology that extends display over to the edges of the phone.