I'm going with the 3G option.
Mostly because there are too many areas where wifi is not available. As noted in the earlier posts. There's no guarantee that tethering will work with an iPhone->iPad setup (plus I haven't jailbroken my iPhone).
While there is an added cost the device really does come into its own when you include 3G, without it,you're stuck at starbucks home or a few other locations that offer wifi.
Plus when I've traveled, the provided internet service has been suspect many times, having 3g ensures that I'll have internet service even if the restort/hotel's internet fails to work.
Mostly because there are too many areas where wifi is not available. As noted in the earlier posts. There's no guarantee that tethering will work with an iPhone->iPad setup (plus I haven't jailbroken my iPhone).
While there is an added cost the device really does come into its own when you include 3G, without it,you're stuck at starbucks home or a few other locations that offer wifi.
Plus when I've traveled, the provided internet service has been suspect many times, having 3g ensures that I'll have internet service even if the restort/hotel's internet fails to work.