HP printers. Right...A lot of companies build their workflows around HP printers. For example, Troy Printers are built on top of HP and are used to print cheques secured with magnetic MICR toner.
@retroneo: You can continue to believe rumour sites like this one but don't forget that there is no Verizon iPhone even though it has been talked to death in supposed "credible" rumours from 2007 onward. If it was delayed or cancelled, Apple would have removed referenced to it from their 4.2 site as it is scheduled for release some time this week.
Yes I know big companies use them that is why big companies pay me the big bucks to trouble shoot them. You obviously know nothing about HP printers, their crappy drivers, especially if its an all in one unit that is a bit older, or their constant need of firmware updates.
Like I said before, if its a true rumor, and its because of compatibility issues, my bet is that it has to do with HP printers.