Html support in signatures!
Html support in signatures is crucial in a corporate environment.
Stavros Kalapothas commented
This is really a must have feature!
We have many users that use OWA client on their mobile devices being able to communicate with partners/customers on the move and they would prefer to have the more a corparate look on the email they send out with html signatures which is already provided for OWA (web) and MS Outlook of course!