From TC:

Developers are claiming that there are massive delays in payments for as early as last fall and are not being paid the amount of money that the developers are in fact due from sales. One developer, who hasn’t been paid since November 2008, forwarded us an email chain between Apple’s App Store finance team and himself. An Apple employee, who was responding to the developers complaints, wrote that the developer’s continued emails about the late payments was “bordering on harassment…”

iPhone App Developers Threaten To Sue Apple Over Late Payments [Techcrunch via Cult of Mac]