Computer+Optional

If everything is in the cloud (computer) what do you need a computer for?
media type="youtube" key="GguXRno-zgA" height="385" width="480" Will a 13 year old Powerbook G3 work OK? Will a 12 yr old ibook running LINUX work ok?

Will a 10 yr old ibook running OS 9 work ok? How about an iPad?