Your iPad will easily send to multiple email addresses - but the interface allows only ONE email to be added to the send line at a time. I have figured out a way to put a GROUP list in the iPad contact program.
First off be aware that I am using GMAIL with the mail program. also note that I am NOT using any other applications other than came with the iPad. So I am using apple mail AND apple CONTACTS. You will also need to use apple NOTES to implement this technique.
My group technique:
Go to apple MAIL and send yourself a email to your iPad and on the cc line add ALL of the contacts in your address book. Since this is just to get the addresses all lined up correctly for you - you may just say HI to everyone and tell them you are setting up your iPad mail.
When the mail message comes back To your iPad it contains ALL of the addresses you are interested in GROUPING. Now follow this closely. NEXT FOWARD THIS MESSAGE to your iPad mail.
When it comes back as a forwarded message YOU WILL SEE THE EXPANDED EMAIL ADDRESSES in the body of the text.
Next COPY THESE EXPANDED EMAIL ADDRESSES and paste them in your notepad. NOTE - when you go to copy them make sure you get the magnifying glass and not the contact copy. To do this just put your finger over text before or after the addresses. Once the magnifier comes up use SELECT and drag the nibs over the entire collection of addresses. Then copy these into a temporary page in apple NOTES.
Go to apple NOTES and edit cleanly those addresses you want as a group. Then SELECT those addresses and COPY. The only reason I put them in NOTES is to facilitate easy editing of the addresses.
Next got to CONTACTS and create a new contact called - ALL FAMILY or ALL PRIVATE or ALL SCHOOL... You get the picture. Under the email for ALL FAMILY you will be copying JUST THOSE EMAIL ADDRESSES that you want grouped as FAMILY. When finished select DONE.
Next check it out and when you want to send a Email to your family use ALL FAMILY and it will Indeed be sent to everyone in your family.
I left the addresses in NOTES and cut and pasted several GROUPS and made a number of them in CONTACTS. It should save you time. It works really slick...
I hope you will find this useful...