WSJ:

Verizon Wireless customers may have to wait more than three weeks for the device, according to the carrier’s website. That compares with as much as 21 days at AT&T and up to 14 days at Sprint Nextel. While some tech blogs have suggested Apple’s manufacturing isn’t keeping pace, the carriers point to unexpectedly strong demand for the handset.

And the new BlackBerry sales are slowing. People would rather wait weeks to get an iPhone than take their pick of a BlackBerry now.