Office365 Shared Mailboxes clarification

Hello everyone,

After some research on this matter I need some clarification about Office365 shared mailboxes.

I've found out that shared mailboxes are not visible from mobile devices.

1. Is this the case with all the moble devices (android, ipad, iphone, windows phones)?
2. Are there any plans on changing this behaviour in the future?
3. Is this the case just for the free 5GB shared mailboxes? i.e. If you have a licensed 25GB mailbox and you set it up as a shared mailbox, will it be visible to mobile devices?
4. Are there any functional limitations concerning the Outlook client version (2007 or 2010) used (for both 5 & 25GB version)?

Thank you in advance for your support.

Best Regards

Dimitris Grivas