is reporting that Apple is planning to make iPad users pay if they want to upgrade to iOS 4. The premium for multitasking and all the other iOS 4 goodies - around £5.

The site claims to have spoken to an Apple source who described the charging plan as "definite". Apple has officially stated that it "doesn't comment on rumours and speculation".

If this turns out to be true it will be a big kick in the teeth for iPad owners who have already forked out at least £429 for their tablet, or maybe even as much as £699 for the top of the range model.

However, the iPad EULA would suggest that Apple will not be introducing a charge. It reads:

“Apple will provide you any iPad OS software updates that it may release from time to time, up to and including the next major iPad OS software release following the version of iPad OS software that originally shipped from Apple on your iPad, for free. For example, if your iPad originally shipped with iPad 3.x software, Apple would provide you with any iPad OS software updates it might release up to and including the iPad 4.x software release. Such updates and releases may not necessarily include all of the new software features that Apple releases for newer iPad models”.

So, we've got one site claiming a definite charge from a source and a legal agreement saying that it will come as free. We hope the latter turns out to be true and after the Apple PR disaster of the last few weeks, we think it probably will be.