Also, additional group SMS/email support is a must for furthering the iPhone as a serious business device. Many businesspeople have groups they commonly send emails or SMS. The current implementation of having to click the + button and go through the list every time is time-consuming and tedious. Once a user has picked the first person they want to email or SMS, they should be taken back to the email/SMS app. If they then push the + button to add more people, the list of users should have checkboxes next to their names (or a dropdown if they have multiple methods of contact, each with a checkbox). The user should then be able to select however many of these people they want.
There should also be a method for saving that group in their contact list, so that a group does not have to be re-created or found in the previously sent list of SMS/emails. This would also allow for easily adding/removing someone from that group as needed.