The Me Tile is no longer available in Windows 10 Mobile. Here is the full list of deprecated features:
- Notifications for missed calls, messages and emails on contact tiles is not supported at the time of Windows 10 Mobile release.
- Me Tile and Me Card are no longer supported.
- Cortana can no longer search for apps, settings, email, text messages, contacts and QR Codes on the device and can no longer open apps through voice commands.
- "Hey Cortana" is no longer available on some upgraded devices.
- Group tiles can no longer be used to receive social networking status updates.
- Indoor Maps are no longer available for some locations.
- Certain enterprise features, including Data Protection Under Lock, are not available. Please contact your Microsoft Volume Licensing representative for more information.
- At time of Windows 10 Mobile release Outlook Mail app cannot open .EML attachments.
- The Outlook Calendar app does not support Tasks.
- The MDM functionality to prevent saving and sharing Office documents is not supported.
Source: Microsoft.com (select Mobile → Feature deprecation)