They could let you delete them, then download them via the settings app on-demand (as they do for Facebook, Twitter).
Or they could have a setting which lets you hide them.
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Notifications for this seem like they'll get really annoying. Not only that, but I expect people will go there looking for general help. They should include a copy of the manual (or preinstall it into iBooks, which is now bundled, and include a link to it in the Tips app).