Seems like a sensible move and going with the flow. OS upgrades seem like a strange thing to pay for these days. It adds to the proposition first time macs converts.
One downside is that paid software upgrades provide a useful feedback mechanism. It must get over the 'is this worth $100' bar to sell. I think this is probably important for iwork also. Between creating revenue vs enhancing the mac's value & pulling users deeper into Apple-land, I think the right decision could be to go free. OTOH, that would absolve iwork from having to be good enough that users choose to pay money for it.
Still, free OS upgrades seem like the right choice.
One downside is that paid software upgrades provide a useful feedback mechanism. It must get over the 'is this worth $100' bar to sell. I think this is probably important for iwork also. Between creating revenue vs enhancing the mac's value & pulling users deeper into Apple-land, I think the right decision could be to go free. OTOH, that would absolve iwork from having to be good enough that users choose to pay money for it.
Still, free OS upgrades seem like the right choice.