OK, set the iPad up and added all my email accounts. All working.
What doesn't happen is a notification of new emails. Once I've opened the email app then gone back to the home screen it does appear but that rather defeats the object! I've checked that the email notification is on in general/setting/sounds but that doesn't work either (I have checked that the audio level is right). Not a terrible problem just niggling. I've been wifi connected not 3G during this process.