BusinessWeek cites an analyst stating that Apple could delay the iPhone due to multiple issues.
Quoting analyst Jagdish Rebello from iSuppli the articles writes; "We're hearing it's mostly an issue with the complexity of the device, and that all the component suppliers are making their deliveries on time,"
Commenting on Apple's decision to shift personnel from Leopard development to the iPhone Rebello writes; "Typically the manufacturer and the service provider are making sure the phone meets all its specifications, and that all the production glitches have been ironed out," Rebello says. "It's clear they have found some issues that they need to fix."
BusinessWeek goes onto cite Richard Doherty, director and co-founder of the Envisioneering Group who says that he's tested the iPhone didn't uncover any problems with it.
Doherty goes onto predict that Apple may have concerns over the security of the devices operating system; "Putting a powerful operating system on a phone took extra hands on deck," he says. "The last thing Apple wants is for the iPhone to be vulnerable to hacker attacks."
He goes onto explain that Apple hopes customers will pay for items online using the iPhone.
Finally the article speaks of concerns over the iPhone's battery life, analysts have written that the battery must be small but powerful with huge capacity.
Paul Sagawa analyst with Sanford Bernstein expects the iPhone to have two batteries, one for iPod functions and the other for the phone itself.