From the Windows Phone site:
Resetting your Windows Phone will return it to the same state it was
in the first time you turned it on. All your personal content will be
erased, and the phone will be restored to its factory settings.
If you decide to reset your phone, you can back up apps, text messages,
photos and more to your Microsoft account ...
Not sure if you can fix this on your phone, but try the following:
Go to https://people.live.com
From the top menu, select Manage → Clean up contacts
Mark all the duplicate contacts you want to merge and click "Clean up"
Your @live account is being shown as it's the first Microsoft Account you have added to your phone. Changing the primary account can only be done after a hard reset. For this, navigate to Settings -> about and hit the "reset your phone" button and confirm.
Microsoft has its own cloud service, called Onedrive, which was also formerly known as SkyDrive during the Windows Phone 7 days. Every Windows Phone device. by default backs up pictures in the Camera Roll, Screenshots and Saved Pictures onto the cloud:
Visit onedrive.live.com and sign in with the Microsoft (Outlook, Live, Hotmail) account that you used on ...
The short answer is no.
Because of the architecture of Windows Phone, you can perform certain things with your primary account that you can not do concurrently with the non-primary accounts.
Potentially, in the future, this may be something that is possible with Windows Phone 8.
Otherwise, your only option is to hard reset the phone, make your wife's ...
It turns out I was running an out-of-date 8.0 build; I'm not sure when app lists / settings started to be included in backups but I'm pretty sure from what I've played around with that the build I had didn't do it. I'm currently running the latest version of 8.0 and app lists / settings are included.
Did you explicitly add your accounts to the Phone ?
Settings>>email+accounts>>add an account
Once you add the account, you can choose what to sync ... Email, Contacts & Calendar.
I have 2 laptops (Office 2013) and my Phone (Icon) in sync with my Office 365 E3 account - Contacts and Calendar (not email at this time).
If I make any change on the laptops, ...
Just imagine if someone steals your phone. They'd have access to everything even if they did know your code! That's not good and therefor you're unable to access the data on a locked phone.
On your next phone, enable backup to OneDrive before you do anything else!