Many customers eagerly awaiting the delivery of their Verizon iPad 2 are left disappointed when they check their order status to discover that their package is being re-routed on its way from China – all the way back to Apple. But why?

For some time yesterday, UK carrier Three gave customers the opportunity to purchase the white iPhone 4 through its website for delivery on Wednesday, April 20th. The carrier later removed the listing as news spread over the web, but was this simply an error, or did Three just reveal the device’s launch date?

Well, recent reports have suggested that the device is now in production, and will launch by the end of April. Although Apple is yet to give customers an official date, it may have provided this information to carriers.

Having said that, we still think someone at Three made a slight cock up, and that this listing means nothing. It’s not the first time the carrier has listed the device on its website either; back in January the white iPhone 4 appeared on Three’s website, thought it was listed as “out of stock.”

[via 9to5 Mac]