The iPad's software license structure provides for one major version upgrade for free. Ostensibly because Apple knew that OS4 was coming quickly on the heels of the iPad launch. Future major version upgrades will be provided at some cost. I suppose similar to that charged for iPod touch upgrades.Would they charge iPad users to upgrade their firmware a couple of weeks after buying a brand new device? I doubt it, but I don't know how they'd reconcile it with past statements.